Szczury z Wistar

You perform the Main and Bonus actions offered by the chosen wheel space (in either order) but must complete all effects of the first action before doing the second; the Strength of the Main action equals the number of your Workers in the related Area, and you cannot place more than one Chief of your color in the same Sector (page 7).

A Mission must be revealed and be in the same Room as your Explorer or a Tent to be resolved; you choose any empty row whose requirements you meet, place a Cube there and take the reward, and a numbered lock on a row requires that the row showing that same numbered lock as a reward has already been resolved by someone (rows do not have to be resolved top-to-bottom) (pages 13–14).

Invention cards have defined effect types — Immediate (apply when played), 1x (usable once as a Fast action), Income (apply when played and each New Round), Permanent (apply whenever conditions are met), End Game (apply at game end), and Aggressive (immediate effect that can hurt opponents); icons on the card’s bottom become yours when played (pages 12, 19).

You can buy Electricity as a Fast action (pay 4 items) or obtain it from cards/bonuses; the first Electricity you take gives you the Basic side (grey), taking it again flips it to Advanced (yellow), Advanced Electricity is required for some cards and scores 2 VP at game end (pages 15, 13).

You take a face-down Guest Mouse tile from a Room where your Explorer or a Tent is located, flip it and place it on your Player Board (it may have Immediate, Income or Permanent effects and is worth 0–3 VP at endgame); if you are in the last Basement room you may instead take the top Cheese tile (each player may have only one Cheese, it has no effect but scores the VP printed) (page 10).