Survival sandbox FPS Outpost Zero announced - Alpha test sign-ups live
Crytek Job Postings Suggest Unannounced AAA Title In The Works, Likely A FPS Sandbox Game - PlayStation Universe
FPS in The Sandbox - The mechanics are already there, and rumor from the livestreams is that they are getting updated. You can check out some examples of it already though! :
Announced sandbox shooter Outpost Zero | Alienware Arena
Sandbox Games 1080P, 2K, 4K, 5K HD wallpapers free download | Wallpaper Flare
Crytek's Next Game Might be a Sandbox FPS, Job Listing Suggests
unity3d - Why Realisic Fps Prefab guns becomes too big in the game play? - Stack Overflow
Best Sandbox Games On PC [Complete 2022 List] - GamingScan
Santeri Oksanen on Twitter: "Game alpha starting to run 146 fps now if its up to CPU. And #3080ti approves that flow. Incoming tactical sandbox strategy game. #nvidia #UE4 #UnrealEngine #UnrealDev #Nvidiagamedev