ON&OFF

ON&OFF

Released Jul 2026

ON&OFF is a turn-based strategy game where you manipulate pieces on a grid to trigger explosive chain reactions. Toggle pieces ON to attack, defend, and heal. Read the enemy's telegraphed intents, unleash powerful skills, and master the board to survive!

98% positive · 129 reviews
Not yet
Released, but still in active development
Low confidence
Active Development
Not yet
Released, but still in active development
Low confidence
Active Development

Where to get it

Free on Steam

Evaluation

ON&OFF launched as a free-to-play game on Steam on July 31, 2026. Since launch, the developer (DopamineCrucian) has been actively engaged with the game, shipping three patches in the first 10 days: a Day 1 patch on August 1 addressing difficulty and progression issues, a minor update on August 5 overhauling the tutorial and title screen, and a more substantial 1.1.0 update on August 10 introducing a three-tier difficulty system (Normal, Hard, and Hell), five new in-game events, balance adjustments, new achievements, and German language support. The Day 1 patch explicitly mentioned the difficulty system was in development targeting the "DAY 7 patch," and that commitment was fulfilled with the August 10 update. The developer has stated they will continue improving the game based on player feedback and gameplay data, but has not announced any specific named future content or DLC. Given the game launched only 35 days ago as of today, there is not yet enough post-launch history to establish a long-term content cadence — but the developer is clearly active and engaged.
Evidence
Version 1.1.0 delivered the previously announced difficulty system (Normal/Hard/Hell), five new events, balance adjustments, a new achievement, and German language support. Developer stated they will continue improving balance and quality of life based on feedback.
news post · Aug 10, 2026 source content shipped
high
Day 1 patch lowered difficulty and improved progression guidance. Developer noted they are preparing a difficulty increase system targeting a 'DAY 7 patch', signaling more updates were planned immediately post-launch.
news post · Aug 1, 2026 source content planned
high

Media

Details

Publisher
Jungle Game Lab
Achievements
20
Platform
Windows
Controller
—
Steam Deck
Not rated
Players
Single-player

About this game

A turn-based deckbuilding roguelike where you place magical cards on a grid and connect signals.

Reactivate Used Cards

In a typical deckbuilder, cards disappear after being used once. This game is different — cards remain on the board, switching between ON and OFF states, and activate their effects each time they turn back ON from OFF.

If you reactivate the same defense card twice, its defense is applied twice. If you reactivate the same attack card five times, it becomes a five-hit attack.

The true power of your deck is not just how many cards you have, but where you place them and how you turn them back ON.

Send Signals and Connect Chains

When a card turns ON from OFF, it activates its effect and sends signals to nearby cards in the direction of its arrows. A card that receives a signal switches between ON and OFF. Among those cards, only cards that turn ON from OFF activate their effects again and continue sending the next signal.

Turning on just one card in front of you is not enough. Place your cards so that the signal flows from one card to the next, then to the next again, expanding a single activation into a powerful chain. You can create short, reliable chains, or design massive flows that cross the entire board.

Placement Is the True Power of Your Deck

Having powerful cards is not enough.

What matters is reusing the effects you need from the cards you have already placed. Reactivate attack cards to stack up damage, trigger defense cards again to block incoming attacks, or prepare the board for your next chain.

Complete Your Own Way of Activating Cards

Gain new cards as you fight, and build a deck with cards that work well together.

You can move the board in many different ways: a deck that repeatedly awakens one key card, a chain deck that activates many cards at once, or a deck that builds up cost and unleashes it all at once. Through choices that change with every run, complete your own chain structure.

Key Features

  • Reusable Cards — Cards do not disappear after being used once. They remain on the board, and whenever a signal turns them back ON from OFF, they activate the same effect again.

  • Signal Chain Design — The path of a signal changes depending on each card’s position and direction. With a single placement, complete a massive chain that crosses the entire board.

  • Effects That Activate When Turned ON — When a card switches from OFF to ON, it activates its unique effect, such as attack, defense, or draw. Which cards you turn back ON, and how many times you do it, determines the outcome of battle.

  • Reusing the Effects You Need — What matters is not creating new effects, but bringing out the effects you need from cards you have already placed. Reactivate attack cards to stack up damage, or trigger defense cards again to block incoming attacks.

  • Build Your Own Chain Deck — Gain new cards through battles and build your deck. Move the board in many different ways, such as a deck that repeatedly activates a key card, a chain deck that triggers many cards at once, or a board-building deck that prepares a major activation for the next turn.

Last evaluated Sep 4, 2026
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