What game engine did Valorant use at its 2020 Windows launch?

What game engine did Valorant use at its 2020 Windows launch? Unreal Engine 4. Riot built and shipped the original Windows version of Valorant on Epic’s Unreal Engine 4, using the engine as a foundation for a competitive shooter designed to run on a wide range of PCs.

Riot’s engineering team customized the technology heavily rather than treating it as an untouched package. The studio worked on rendering, performance, networking, and visual readability so players could clearly track opponents and effects during fast tactical fights. The engine choice let Riot concentrate more of its development effort on gameplay systems and optimization instead of creating every core technology layer from scratch.

The date matters because Valorant’s engine history later changed. Riot upgraded the game from Unreal Engine 4.27 to Unreal Engine 5.3 in the 11.02 update on July 29, 2025. That later upgrade does not alter the answer for the game’s 2020 Windows launch.

Unreal Engine 4 is also distinct from Unity, CryEngine, and Valve’s Source 2. Valorant’s competitive design, low hardware barrier, and custom technology work all sit on top of that original Unreal foundation.