Portal 1 mod versus the Roblox game

Search "portal sandbox mod" and ModDB is near the top for a reason. The project there is a simple mod for Portal 1, described as similar to Garry's Mod: build simple houses, spawn companion cubes, and play Portal 1 with Half-Life 2 weapons. The first file is dated 28 Oct 2025. Version 1.1 is dated 2 Dec 2025. The file listing identifies Portal_Sandbox_1.1.zip. ModDB is the only source checked for the release date; it is not an independently verified current-version claim.

Do not mix the columns. Last checked 30 Oct 2026.
QuestionPortal 1 modRoblox Portal Sandbox
Where it livesModDBRoblox place 75108253383447
Author creditКириешкиD3wsie / D3wsie Games
You needPortal (Valve)Roblox client
First dated file28 Oct 2025Experience created 22 Sep 2026

If you wanted the Roblox controls, you are on the wrong object. Go to controls or back to the name guide that separates the four things people call Portal Sandbox. The Roblox side was in maintenance at the earlier 03:15 UTC reading and public again by 04:08 UTC. The mod's playable state depends on your Portal install, which this page does not test.

Official Portal Sandbox thumbnail: a blocky scientist with a portal gun in front of a green portal
Roblox official thumbnail. This art is not the Portal 1 mod. Image source.
Official Portal Sandbox icon: spiky-haired scientist in front of a green swirling portal
Roblox icon, same warning. The mod's pictures stay on ModDB. Image source.

Sources

Questions

Is the ModDB project the Roblox game?

No. It is a mod for Valve's Portal. You need to own Portal. The Roblox experience needs the Roblox client.

Who made the mod?

ModDB credits Кириешки. The Roblox experience is credited to D3wsie and the group D3wsie Games.