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A fast-paced one-button defense game with endless difficulty, explosive effects, and built-in mod support. Rotate your weapon, survive the chaos, and create your own mods with JavaScript – all inside the game.
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest ends
One Button Defense is a minimalist yet highly addictive defense game where your only control is switching the rotation of your weapon – clockwise or counterclockwise.
Simple Controls, Infinite Challenge – Just one button to reverse your weapon's rotation, but the enemies never stop coming.
Explosive Visual Effects – Minimal shapes, maximum particle effects for a satisfying dopamine rush.
Endless Difficulty Scaling – Survive as long as you can while the challenge ramps up without limit.
Score & Survival Records – Compete with yourself or friends for the highest score.
Built-in Modding Support – Add JS files to the mods/ folder or code directly in the in-game mod editor. Create new weapons, change enemy behavior, or break the rules entirely.
Whether you're chasing high scores, experimenting with crazy mods, or just enjoying the chaos, One Button Defense delivers quick, intense fun you can jump into anytime.
Lowest tracked price: €2.99 (Jul 7, 2026) · current best: €2.99.
Right now the cheapest offer for One Button Defense is €2.99 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for One Button Defense is €2.99 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when One Button Defense drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
