EternalCircuitBoard Demo

The full game (60 stages) is coming in November 2026. You can add it to your wishlist from the full game box just above. The demo includes 10 stages, including the tutorial. Your demo progress carries over the first time you launch the full game on the same PC. Connected circuits generate energy every turnA puzzle game where you place colored chips one at a time on a 6×6 board. Arrange chips in the right shape to complete a circuit and generate energy.

Completed circuits stay on the board and generate energy every turn. Chips used in one circuit can also be used in the next. Reach the target score before the stage runs out of turns. Three kinds of circuitsTriangle circuits — Place 3 Energy chips in a right angle to generate energy every turn. Sustain circuits — Tiles between two Protect chips are shielded from blockades. Line circuits — Line up 4 Draw chips to gain Wild chips that can stand in for any chip.A single chip can complete several circuits at once.

Encroaching blockadesBlockade warnings appear on the board, and tiles left unprotected become unusable. Extend your circuits or shore up your defenses — every placement shapes the board. FeaturesA tutorial and 60 stagesA preview that shows which circuits a placement completes and how much energy it earns, before you commitStage-specific twists such as bonus colors and challengesPlay with mouse or gamepad