Games Most Like Roblox: Best User-Generated Content Platforms

Roblox combines a UGC platform, game engine, and social economy into one ecosystem. No single alternative replicates all three pillars perfectly, but these platforms share core DNA:

Closest UGC Platforms

• Core (by Manticore Games): Unreal Engine-based with Lua scripting; publish to the Core launcher. Higher visual fidelity but smaller community.
• Fortnite Creative / UEFN (Unreal Editor for Fortnite): Build islands with Verse scripting; publish to Fortnite's massive audience. Monetization via the Island Creator Program.
• Rec Room: Cross-platform (VR/flat), Maker Pen visual scripting, rooms/games, token economy. Strong social focus.
• VRChat: Unity SDK for avatar/world creation; PC/VR. Adult-leaning, highly social.
• Dreams (PS4/PS5): Visual programming, sculpting, music, and logic tools. Incredible creative suite, PlayStation-exclusive.
• Garry's Mod (PC): Source Engine sandbox with Lua and Workshop addons. 18-year-old mod platform.
• Minecraft (Bedrock/Java): Add-ons (behavior/resource packs), Data Packs, Command Blocks, Redstone. Not a "game maker" per se, but massive UGC.
• LittleBigPlanet 3 / Dreams: LBP = 2.5D platformer creator; Dreams = full engine.
• KoGaMa / Blocksworld (mobile/web): Simpler block-based creators.

Match by What You Love About Roblox

• Building + Survival: Minecraft, Terraria, Core.
• Social Hangout + Mini-games: Rec Room, VRChat, Fortnite Creative.
• Learning to Code/Game Dev: Core (Lua), UEFN (Verse), Dreams (visual), Godot/Unity (real engines).
• Economy / Monetization: Roblox (DevEx), Fortnite Creative (Island Creator), Core (Perks).

Best Starting Points: Fortnite Creative (UEFN) for audience reach + modern tools; Core for pure UGC platform feel; Rec Room for social + easy creation.