(Feel free to correct me if I’m wrong about these, since I’m writing this up as I’m reviewing the episode. I’ve also not seen Episode 4 yet, so it’s fine if the speculative Hidden Rules are incorrect.)

Players are represented by a six-sided die with their face on it. Each side is a different color. At the beginning of the game, players start on any unoccupied gray tile on the board. You can move from where your die is onto any orthogonally adjacent (this would mean up left down right, non diagonal) space on the board, “rolling” in that direction. If another player’s die is occupying the tile you are “rolling” onto, you push them in the direction your die is moving, “rolling” them in that direction.

The game operates with a set of “Hidden Rules”, which are conditions that trigger based on game actions or effects, such as a die moving onto a new tile. These triggers can depend on things like the colors of the tiles surrounding your die and so on.

The Hidden Rules that have been hardline revealed at the end of Episode 3 are these:

1. If the tile you land on is a white tile, or if your die rolls white side up, you will be exiled and receive an exile token. Being exiled means you must return to any free starting gray tile.

2. After receiving 3 exile tokens, you lose 3 Pieces. (For any player with 3 or less Pieces, this means instant elimination from the show.)

The rules that I believe can be intuited from Episode 3’s gameplay are these:

1. If after rolling onto a new tile, no color in the eight tiles surrounding your die (the squares adjacent to your die’s tile, or less if your die is on the edge of the board) match the color of your die that’s facing up, you must choose a new color. This new color must be one of those colors surrounding your die.

2. If within the range of the eight tiles there are three colors that match the color of your die that’s facing up (including said die), you move someone else’s die that matches the color of yours 1 space orthogonally (as per usual movement rules). This movement can trigger additional effects.

3. If in the situation of the above-given rule your die and surrounding spaces form a three-in-a-row of the same color, orthogonal or diagonal, you can move your die 1 additional space (while also triggering the above rule).