Yes — co-op. Guardians of the Sanctree is a tower defense game released in 2024, 77% positive on Steam (300 reviews), with 2 playing right now. $19.99 on Steam.
You and allies, avian inhabitants of Sanctree City, build structures and production lines on the tree,…
Steam tags: Base-Building, Online Co-Op, 2D, Tower Defense, Colony Sim, Sandbox, City Builder, Resource Management
Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Guardians of the Sanctree 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 Guardians of the Sanctree? 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