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Defend against endless waves of deadly red cubes in this futuristic idle tower defense game. Upgrade your towers, deploy mini-towers, speed up time, and rotate the battlefield in full 360°. Infinite levels. Infinite upgrades. No mercy.
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
Try this game before buying.
Hold the line. Upgrade the future. Watch the cubes fall.
In Idle Geometry Defense, you’re the last geometric hope against a relentless swarm of hostile red cubes. Strategically build and upgrade your towers to tear through waves of enemies in a sleek, futuristic battlefield where every second counts and every kill fuels your rise.
Your towers are your weapon—and your obsession. Crank up their attack damage, stretch their range, increase their firing speed, boost their max HP, and accelerate their regeneration. And when that’s not enough? Deploy mini-towers, stacked with their own upgradable power, and turn the field into a fortress of unstoppable firepower.
Time is on your side—or not. Speed up the action up to 3x and let the chaos unfold. The waves never stop. The upgrades never end. The enemies keep coming: swarms of small red cubes, followed by towering bosses with massive health bars. Survive them all, and rack up the points.
Idle Geometry Defense is more than just a tower defense game—it's a clean-cut, 360-degree view of the apocalypse. Zoom in, rotate the battlefield, and survey your empire of destruction. Dark, minimal, and mechanical—this is tower defense stripped to its core, built for endless play and infinite upgrades.
Key Features:
Idle Tower Defense gameplay with deep upgrade paths
Boost tower attributes: Damage, Radius, Speed, Max HP, and Regen
Deploy and upgrade mini-towers for extra firepower
Fight off endless waves of enemies and massive boss cubes
Speed up time to 3x and watch the chaos unfold
Earn points with every kill
Unlimited levels and upgrades
Full 360° camera control with zoom functionality
Futuristic minimalist aesthetic
Incremental progression that never stops
You don’t beat the game. You become the game.
Lowest tracked price: €2.14 (Jul 7, 2026) · current best: €4.29.
33% positive reviews all-time.
Right now the cheapest offer for Idle Geometry Defense is €4.29 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 Idle Geometry Defense is €2.14 (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 Idle Geometry 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.
