ON&OFF Makes Your Board the Star
ON&OFF is a turn-based deckbuilding roguelike that hands the real power to your placements and timing. Instead of burning cards the moment you use them, this game keeps them on the grid in ON and OFF states. When a card flips back ON from OFF, it activates its effect again and can send a signal to the next card in line, starting a cascade of reactivations. The result is a puzzle-like combat loop where a single placement and a well-timed toggle can become a series of stacked attacks, repeated defenses, or multiple heals.
Reusable Cards Change the Rules
Most deckbuilders treat cards like consumables. ON&OFF treats them like persistent tools. Use a defense card once, and it stays on the board waiting to be toggled ON again. Reactivate the same defense card twice and you'll block twice. Turn an attack card ON five times and you unleash a five-hit combo. That means the value of a card is far more than its base effect - it becomes a node you can reuse, enhance, and chain.
This design changes how you draft and play. You are not just collecting effects; you are constructing a circuit. Which cards you place, where you place them, and how often you wake them up matters more than simply amassing power.
Send Signals, Build Chains
Signals are the heartbeat of combat. When a card activates, it sends signals in the directions indicated by its arrows. A receiving card flips its ON/OFF state, but only those cards that switch from OFF to ON fire their effects and pass the signal along. That mechanic makes chain design both delicate and rewarding.
You can build short, predictable chains to guarantee a defensive buffer or risk larger flows that sweep the whole board for massive multi-hit attacks. A single properly placed starter can blossom into a boardwide explosion if your signal path is uninterrupted. Conversely, a misaligned card or a poorly thought-out arrow can break the flow and leave you exposed.
Placement Is the True Power of Your Deck
In ON&OFF the map is as important as the cards in your hand. Powerful cards are useful, but placement dictates how often and under what circumstances they trigger. Want constant chip damage? Focus on repeatedly awakening one attack node. Need reliable mitigation? Design a loop that reactivates several defense cards before the enemy strikes.
The game supports different board strategies. You can craft a single-key deck that revolves around repeatedly reactivating one pivotal card. Or you can assemble chain decks that trigger many nodes at once for massive turns. Some runs will favor board-building decks that scaffold cost and timing for a delayed, devastating activation on the next turn. The deck archetypes are emergent from how you route signals across the grid.
Effects That Matter When Turned ON
ON&OFF keeps things clear and tactical by making effects conditional on flipping ON from OFF. Typical activations include attack, defense, heal, and draw. That dependency means you are constantly weighing whether to flip a specific node now to solve an immediate problem or save it as part of a longer chain. It also rewards foresight: enemy intents are telegraphed, so you can prepare your chain to counter what is coming.
Build Your Own Chain Deck
New cards are gained through battles, so every run changes the palette of possible nodes. Look for cards whose arrows and effects complement what you already have on the board. Synergy is spatial and temporal. A card that looks average in isolation can become essential if it completes a conduit for your main chain.
Because the board state persists between card uses, decisions compound. Small placement advantages can snowball across turns. The roguelike structure ensures that each run forces fresh adaptations, and successful players are those who can see the signal paths others might miss.
Who Should Try ON&OFF
If you like puzzle-driven strategy, spatial reasoning, and deckbuilding with a long-term twist, ON&OFF will likely scratch an itch other card games do not. Expect careful planning, rewarding execution, and a satisfying click when a chain you built finally fires and everything lines up. The game leans into experimentation, so it invites players who enjoy iterating on layouts and deck synergies across multiple runs.
ON&OFF reframes what a card can be. Instead of a one-shot trick, each card is a reusable component in a living system. Master the board, connect the signals, and the explosions will take care of the rest.
➡️ Check out ON&OFF now on Steam
