Agent skill

Card Game

by gamedev-skills in gamedev-skills/awesome-gamedev-agent-skills

Build a card game: card data, deck/hand/discard zones, draw/shuffle/reshuffle, a turn structure, costs, and effect resolution.

Apache-2.0Auto-check passedGame Development

Install Card Game

skills CLI

$ npx skills add gamedev-skills/awesome-gamedev-agent-skills --skill card-game -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install gamedev-skills/awesome-gamedev-agent-skills card-game --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/gamedev-skills/awesome-gamedev-agent-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/genres/card-game .claude/skills/card-game && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "card-game" agent skill from https://github.com/gamedev-skills/awesome-gamedev-agent-skills/tree/main/skills/genres/card-game into .claude/skills/card-game/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "card-game", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/gamedev-skills/awesome-gamedev-agent-skills/tree/main/skills/genres/card-game

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add gamedev-skills/awesome-gamedev-agent-skills --skill card-game -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install gamedev-skills/awesome-gamedev-agent-skills card-game --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/gamedev-skills/awesome-gamedev-agent-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/genres/card-game .agents/skills/card-game && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "card-game" agent skill from https://github.com/gamedev-skills/awesome-gamedev-agent-skills/tree/main/skills/genres/card-game into .agents/skills/card-game/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "card-game", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add gamedev-skills/awesome-gamedev-agent-skills --skill card-game -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install gamedev-skills/awesome-gamedev-agent-skills card-game --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/gamedev-skills/awesome-gamedev-agent-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/genres/card-game .cursor/skills/card-game && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "card-game" agent skill from https://github.com/gamedev-skills/awesome-gamedev-agent-skills/tree/main/skills/genres/card-game into .cursor/skills/card-game/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "card-game", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/gamedev-skills/awesome-gamedev-agent-skills.git --path skills/genres/card-game

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add gamedev-skills/awesome-gamedev-agent-skills --skill card-game -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install gamedev-skills/awesome-gamedev-agent-skills card-game --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/gamedev-skills/awesome-gamedev-agent-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/genres/card-game .gemini/skills/card-game && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "card-game" agent skill from https://github.com/gamedev-skills/awesome-gamedev-agent-skills/tree/main/skills/genres/card-game into .gemini/skills/card-game/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "card-game", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install gamedev-skills/awesome-gamedev-agent-skills card-game

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add gamedev-skills/awesome-gamedev-agent-skills --skill card-game -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/gamedev-skills/awesome-gamedev-agent-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/genres/card-game .github/skills/card-game && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "card-game" agent skill from https://github.com/gamedev-skills/awesome-gamedev-agent-skills/tree/main/skills/genres/card-game into .github/skills/card-game/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "card-game", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add gamedev-skills/awesome-gamedev-agent-skills --skill card-game -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install gamedev-skills/awesome-gamedev-agent-skills card-game --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/gamedev-skills/awesome-gamedev-agent-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/genres/card-game .opencode/skills/card-game && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "card-game" agent skill from https://github.com/gamedev-skills/awesome-gamedev-agent-skills/tree/main/skills/genres/card-game into .opencode/skills/card-game/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "card-game", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: card-game
GitHub stars: 1.4k
Token cost: ~1.6k tokens
SKILL.md length: 617 words
Files: 2 (incl. references)
Skills in repo: 53
Repo updated: Oct 9, 2026
First seen: Oct 7, 2026
Licence: Apache-2.0

At a glance

Build a card game: card data, deck/hand/discard zones, draw/shuffle/reshuffle, a turn structure, costs, and effect resolution.

Works in 3 steps: Zones + draw with automatic reshuffle → Card as data + effect resolution → Turn structure as a phase machine
Roguelike deckbuilder
SKILL.md covers When to use, Core loop, Must-have systems and Design knobs, plus 4 more sections
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Card Game is an agent skill from gamedev-skills/awesome-gamedev-agent-skills. Build a card game: card data, deck/hand/discard zones, draw/shuffle/reshuffle, a turn structure, costs, and effect resolution. Use for a deckbuilder, TCG/CCG, or roguelike deckbuilder.

Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/effect-resolution.md`).

It sits in Game Development, covering Game development. The repository describes itself as: 74 game-dev skills for AI coding agents — Godot, Unity, Unreal, Phaser, PixiJS, three.js, Bevy, pygame, LÖVE, Roblox. Portable SKILL.md Agent Skills (the format Anthropic… The licence is Apache-2.0.

When your agent uses it

Roguelike deckbuilder
Tasks that involve Game development

Example prompts

“/card-game”

Requirements

Python 3

Workflow steps

3 steps, taken from the step headings in SKILL.md.

Zones + draw with automatic reshuffle
Card as data + effect resolution
Turn structure as a phase machine

What it can do on your machine

Read from SKILL.md and the folder at commit 0a70cfc. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are python).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Card Game loads about 1.6k tokens when it runs, and up to ~2.8k if it reads all its reference files. Until then it costs about 49 tokens; SKILL.md has 617 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~49
When it runs · the whole SKILL.md, loaded when a task matches: ~1.6k
With references · SKILL.md plus every file in references/, read only if the agent opens them: ~2.8k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from gamedev-skills/awesome-gamedev-agent-skills at commit 0a70cfc, republished under its Apache-2.0 licence (© gamedev-skills). 617 words, ~1,616 tokens.

Download SKILL.mdSave it as .claude/skills/card-game/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: card-game
description: Build a card game: card data, deck/hand/discard zones, draw/shuffle/reshuffle, a turn structure, costs, and effect resolution. Use for a deckbuilder, TCG/CCG, or roguelike deckbuilder.

Card Game

A playbook for card games — card data, the deck/hand/discard zones, the turn structure, and how card effects resolve. This is a compositional skill: it models cards as data and wires them to UI. It does not re-teach data assets or UI nodes; it defines the zone model, the draw machinery, and the effect-resolution rules that keep a card game correct and bug-free.

When to use

Use when building any game where the core objects are cards moving between zones (deck → hand → play → discard): deckbuilder, TCG/CCG, solitaire, roguelike deckbuilder.
Use when designing draw/shuffle/reshuffle, turn structure, card costs, or how effects resolve.

When not to use: board/tile state with matching rules → puzzle. RPG with an incidental card battler → start from rpg. For defining cards as assets, use godot-resources / unity-scriptableobjects; for the hand/drag UI, use godot-ui-control.

Core loop

Draw to your hand → spend resources to play cards → effects resolve and change the board → end the turn (cleanup/discard) → opponent/next phase → repeat until a win condition. Depth comes from the combinations a hand allows; the engine's job is to resolve them unambiguously.

Must-have systems

Card data — id, name, cost, type, text, and an effect spec (data, not code).
Zones — deck (draw pile), hand, play/board, discard, exile/removed; cards live in exactly one.
Draw + shuffle + reshuffle — draw from deck to hand; reshuffle discard into deck when empty.
Turn structure — phases (untap/draw/main/combat/end) as a state machine.
Resource system — mana/energy/actions that gate how much you do per turn.
Effect resolution — apply a card's effects in a defined order; handle targets and triggers.
Win/loss condition — life total, deck-out, objective.
UI — hand layout, drag/drop or tap-to-play, zone counts, targeting affordances.

Design knobs

Knob	Effect	Notes
Starting hand / draw-per-turn	tempo, consistency	More draw = less variance.
Hand size limit	hoarding vs. use	Discard down at end of turn.
Deck size (min)	consistency	Smaller = more reliable combos.
Resource curve	what's playable when	"Mana curve" paces power.
Card rarity / power budget	balance	Stronger cards cost more / are rarer.
Determinism vs. randomness	skill vs. swing	Shuffle + random effects add variance.
Reshuffle rules	deck-out, fatigue	Reshuffle discard, or punish empty deck.
Removal / answers	counterplay	Every threat needs an answer in the pool.

Patterns

1. Zones + draw with automatic reshuffle

python

# Pseudocode. A card is in exactly one zone at a time; moving = remove here, add there.
def draw(n):
    for _ in range(n):
        if not deck:
            if not discard:          # truly empty: deck-out (lose, or take fatigue)
                on_deck_out(); return
            deck.extend(discard)     # reshuffle discard into deck
            discard.clear()
            shuffle(deck, rng)       # use a seeded RNG (see save-systems for replays)
        hand.append(deck.pop())

Show full SKILL.md (245 more words)Show less

2. Card as data + effect resolution

python

# Pseudocode. Effects are a data list interpreted by the engine — not bespoke code per card.
card = {
    "id": "fireball", "cost": 3, "type": "spell",
    "effects": [ {"op": "damage", "amount": 6, "target": "chosen_enemy"} ],
}
def play(card, caster):
    if resources[caster] < card.cost: return False     # can't afford
    resources[caster] -= card.cost
    move(card, from_zone=hand, to_zone=play_or_discard(card))
    for fx in card.effects:
        resolve_effect(fx, caster)                      # one interpreter handles every card
    return True

3. Turn structure as a phase machine

python

# Pseudocode. Fixed phases keep timing windows (triggers, priority) unambiguous.
PHASES = ["untap", "draw", "main", "combat", "end"]
def take_turn(player):
    for phase in PHASES:
        enter_phase(player, phase)        # fire "on_phase" triggers here
        if phase == "draw":   draw(1)
        if phase == "main":   await player_plays_cards()
        if phase == "combat": resolve_combat()
        if phase == "end":    discard_to_hand_limit(player); clear_temporary_effects()

Pitfalls / failure modes

A card existing in two zones at once → duplication/loss bugs. Enforce "exactly one zone"; move = remove-then-add, and assert no card appears twice.
Forgetting to reshuffle → draws silently fail or crash on empty deck. Reshuffle discard, or define deck-out/fatigue explicitly (Pattern 1).
One function per card → unmaintainable and untestable. Make effects data interpreted by a small set of operations (Pattern 2).
Ambiguous effect order / simultaneous triggers → nondeterministic outcomes. Resolve in a defined order (a queue or stack); document LIFO vs. FIFO (refs).
Unseeded shuffle in a game that needs replays/undo → can't reproduce. Use a seeded RNG.
No hand limit / no answers → degenerate hoarding or unbeatable threats. Add a hand cap and ensure removal exists for every threat archetype.
Targeting state leaks → a cancelled play leaves the board mid-targeting. Make play atomic: validate cost + targets first, then commit.

Composition (build it from these skills)

Card content: godot-resources / unity-scriptableobjects — define each card as a data asset.
UI: game-ui-ux for layout, scaling, and focus navigation; godot-ui-control for hand layout, drag/drop, zone counts, and targeting prompts.
Persistence/replays: save-systems for collection, run state (roguelike deckbuilder), and seeded replays.
Opponent AI: game-ai for an AI that evaluates playable cards and picks targets.
Animation/feedback: the engine animation skill for card movement; audio-design for cues.
Scripting: godot-gdscript / unity-csharp-scripting for the effect interpreter.

References

For the effect queue/stack, keywords/triggers, targeting, deckbuilder vs. constructed archetypes, and shuffle fairness, read references/effect-resolution.md.

Files

SKILL.md and 1 other file (references) in skills/genres/card-game of gamedev-skills/awesome-gamedev-agent-skills.

SKILL.md
references/effect-resolution.md

Open the folder on GitHubat commit 0a70cfc

Compare with similar skills

Card Game next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Card Game compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
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Godot Gdscript Patterns925236118/AlphaAgent	103	10 repos	~5k	Automated safety check: Pass	MIT	3 days ago
Sprite Genaldegad/sprite-gen	2.7k	—	~4.9k	Automated safety check: Pass	Apache-2.0	yesterday
2D Map and Scene Generator0x0funky/agent-sprite-forge	4.4k	—	~2.9k	Automated safety check: Pass	MIT	5 days ago
Fantasy Framework Development Guideqq362946/Fantasy	1.4k	—	~5.8k	Automated safety check: Pass	Custom licence	2 days ago
Dev StoryDonchitos/Claude-Code-Game-Studios	26k	—	~2.4k	Automated safety check: Notes	MIT	3 days ago

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Questions about Card Game

What does Card Game do?

Build a card game: card data, deck/hand/discard zones, draw/shuffle/reshuffle, a turn structure, costs, and effect resolution. Card Game is an agent skill from gamedev-skills/awesome-gamedev-agent-skills. Build a card game: card data, deck/hand/discard zones, draw/shuffle/reshuffle, a turn structure, costs, and effect resolution.

When should I use Card Game?

Card Game fits situations like: roguelike deckbuilder; tasks that involve Game development.

How do I install Card Game in Claude Code?

Run `npx skills add gamedev-skills/awesome-gamedev-agent-skills --skill card-game -a claude-code`. Or copy the skill folder (skills/genres/card-game in gamedev-skills/awesome-gamedev-agent-skills) into .claude/skills/card-game in your project. Claude Code loads it when a task matches its description.

How do I install Card Game in Codex?

Run `npx skills add gamedev-skills/awesome-gamedev-agent-skills --skill card-game -a codex`. Or copy the skill folder (skills/genres/card-game in gamedev-skills/awesome-gamedev-agent-skills) into .agents/skills/card-game in your project. Codex loads it when a task matches its description.

Can I use Card Game in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add gamedev-skills/awesome-gamedev-agent-skills --skill card-game -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/card-game, .gemini/skills/card-game, .github/skills/card-game and .opencode/skills/card-game in your project.

What does Card Game need to run?

SKILL.md names no scripts, command-line tools or credentials: Card Game is instructions for the agent only. Our summary lists: Python 3.

Does Card Game access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Card Game safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Card Game use?

Card Game is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Card Game use?

About 1.6k tokens (SKILL.md is roughly 6.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 1.2k tokens, read only when the agent opens those files.

What are the alternatives to Card Game?

Skills that share tags, products or a category with Card Game: Godot Gdscript Patterns (925236118/AlphaAgent, 103 stars), Sprite Gen (aldegad/sprite-gen, 2.7k stars), 2D Map and Scene Generator (0x0funky/agent-sprite-forge, 4.4k stars) and Fantasy Framework Development Guide (qq362946/Fantasy, 1.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Card Game?

gamedev-skills (a GitHub organization) maintains it in gamedev-skills/awesome-gamedev-agent-skills, which has 1,389 GitHub stars. The repository holds 53 skills in this directory. The repository was last updated on October 9, 2026.

Source: gamedev-skills/awesome-gamedev-agent-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Card Game

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Card Game

When to use

Core loop

Must-have systems

Design knobs

Patterns

1. Zones + draw with automatic reshuffle

2. Card as data + effect resolution

3. Turn structure as a phase machine

Pitfalls / failure modes

Composition (build it from these skills)

References

Files

Compare with similar skills

Similar skills

More from gamedev-skills/awesome-gamedev-agent-skills

Related

Questions about Card Game