The Big Game Engine Report of 2025 (Sensor Tower)

Summary

• The report captures game engine data for over 13,000 games on Steam.p.3
• Unity accounted for over half of games released in 2024, but only 26% of units sold.p.6
• Godot, RPG Maker, GameMaker and similar public engines make up just over 10% of games released but barely 2% of units sold on Steam.p.6
• Among large games (1M+ units), Unity has 22%, Unreal Engine 31% and other engines 46%.p.7
• Unity has been the preferred choice for over 50% of games made on Steam since 2021, but Unreal Engine, Godot and GameMaker have gained share.p.9

Key insights

1. Unreal Engine is quickly winning share from custom engines, becoming the go-to engine for many AAA studios.p.3
2. Among tiny games (under 1k units), Unity holds 50% of units sold.p.7
3. In units sold in 2024, custom in-house engines and Unreal Engine beat Unity.p.6
4. Larger studios have built their internal engines for over ten years and still rely on them heavily.p.7
5. Data includes only games that have sold at least 1,000 units over their lifetime.p.6