65%Strong matchInfinity Sweeper
62%25362% positive reviews, Mixed across 253 reviews·Roguelite · Deckbuilding
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A minimalist yet strategic puzzle-arcade game where every bounce counts. Redistribute cell values, unlock powerful abilities, and survive as long as you can — one wrong move, and it's game over.
I/O is a minimalist but deeply strategic puzzle-arcade game where every bounce matters — and one wrong move could end your run.
At its core, I/O is about survival. You bounce between two platforms filled with numbered cells. Each bounce reduces a cell’s value — and if you ever land on a cell showing zero, it’s game over. Unless… you’ve got a power to save you.
🧠 Plan Your Moves. Adapt Fast. Each run presents a fresh grid and unique challenge. Think ahead, redistribute cell values, and use your limited powers wisely. Every 5 stages, you’ll enter Split Mode — a tactical break where you can transfer half the value of one cell into another, giving you a chance to balance the board and extend your life.
🧬 Choose Your Powers Before each run, pick two powers to bring with you. These are game-changers:
Each power has limited uses, so timing is everything.
📈 Progress & Unlock Earn score by surviving longer and bouncing smart. Use that score to unlock new power-ups in the Power Store, giving you more tools and strategies for future runs.
🧩 Key Features
How long can you stay in the loop?
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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