Yes — co-op. Unreal Sandbox is a classic & campaign shooter game released in 2021, 50% positive on Steam (4 reviews). $0.99 on Steam.
Build and play with others with a physics based sandbox created in unreal engine 5
Steam tags: Casual, Sandbox, FPS, 3D, First-Person, Building, Open World, Physics
Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Unreal Sandbox is one of them — then helps you pick tonight's game with a weighted roll or a bracket.
Or open the Steam store page.
Tired of Unreal Sandbox? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.
Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; page updated 2026-09-09. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. How the data works · Legal & privacy · All types · Game Pass