Project L

Readiness

draft-ready (confidence=0.67, rules=0.65, fun=0.70). BGG rank: 374; year: 2020; weight: 1.56; playtime: 40 min

Core Loop

Project L is a fast tetromino-puzzle engine builder. On your turn, you take exactly 3 actions (with one bonus "master" action available once per turn at certain points) from a small menu: take a level-1 piece (free black 1-square), take a puzzle from the market (white = easier/lower reward, black = harder/higher reward), upgrade a piece (trade in for a piece of next size), place one piece into one of your active puzzles, or "master" — place one piece into every one of your puzzles in a single action. When a puzzle is completed (filled with tetromino pieces), you score its VP and gain its reward piece (a new tetromino added to your collection), then take a fresh puzzle.

Turn Structure and State

• No manual/BGA/transcript source is present; card relies on memory plus BGG context.
• BGG description anchor: Build pieces, develop an engine, perfect your strategy, and win the game! Project L is a fast-paced, tile-matching brain burner with triple-layer 3D puzzles and acrylic pieces. Challenge your friends to a game of simple design but intricate gameplay that makes a lasting impression! The core of the game lies in using your pieces to complete puzzles. Starting with just two basic pieces, you use three actions [...]

Win Condition and Arc

Game ends when the black puzzle deck runs out; each player takes one final round. Score = puzzle VP minus penalty for unfinished puzzles. Arc: snowball — early game you have small pieces and slow turns, late game you place 4+ pieces per turn and complete multiple puzzles per round.

Decision Primitives

BGG mechanisms: Action Points, Contracts, Open Drafting, Pattern Building, Resource Queue, Solo / Solitaire Game, Tile Placement

Memory-derived primitives:

• Tetromino spatial puzzle
• Action-point allowance (3 actions/turn + 1 master)
• Piece upgrading (size/quality progression)
• Engine building (each completed puzzle awards a piece, growing your toolkit)
• Open puzzle market

v4 controlled primitives: polyomino_packing, engine_growth, incremental_economy, tableau_shared_market

Why It Is Fun

The "click" of fitting tetrominoes is intrinsic. Master action creates explosive turns. Quick (~30–40 minute) and clean rules. Solo mode is well-regarded.

Friction and Failure Modes

• Treat Sonnet-memory edge rules as draft until confirmed by manual, BGA, or transcript.
• Needs at least one stronger rules authority before final extraction use.

Translation and Design Hooks

• Use this card to ask: which primitive carries the fun if theme/licensing is removed?
• For iOS, look for short-session compression, clear state visualization, and a digital-only twist.
• For new tabletop design, look for the tension source and decide whether to preserve or invert it.

Edge Rules and Gotchas

• Master action: once per turn, you may use one of your actions to place a single piece into EACH of your active puzzles (huge tempo).
• Hand limit: you can hold up to 4 active puzzles at once.
• Black puzzles are worth more VP and reward better pieces; white puzzles are easier.
• Upgrading: trade in a piece for a piece of size +1 (action cost).
• Penalty: unfinished puzzles at game end cost VP equal to a printed value.
• The L piece (and other shapes) come in sizes 1 through 5 (1 square through full pentomino-ish shapes).
• Bonus: completing a puzzle is FREE — it doesn't cost an action; piece placement that completes a puzzle simply scores it.

Sources Used

[
  {
    "kind": "llm_memory",
    "path": "data/llm_memory_sonnet/260180.md",
    "quality": 0.65,
    "note": "sonnet-self-rated-8"
  }
]