Portal 3: The Return of Black Mesa
A Roblox experience owned by The Protostar builders.
PuzzleENPortalPuzzleOpen-world
Description (written by the developer; not a statement by this register)
After the events of the last game, you start walking and a while later you find this mysterious place. What will happen next? There's Story, Evil, Puzzles, Mystery, And More. Adding dialogue one day. This is a giant open-world puzzle game based on the Portal franchise! This takes place after Portal 2! | Yes there are credits but besides those I reserve the rights to the Roblox Game so please do not copy my story idea for this game or my level creations otherwise your game will be taken down. | Credits: Original Idea: Valve the creator of Portal 1 & Portal 2 | They reserve all copyrights. | Thanks to BUFAAR Thanks to ForeverHD Thanks to Kingdom 2 - for music.
Last updated by the developer 27 Apr 2025, 17:52 UTC.
Live players over time
Growth
Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.
| Measured (UTC) | Players | Change |
|---|---|---|
| 22 Aug 2026, 04:00 | 0 | first reading |
Concurrent players at each of our measurements (insert-on-change).
Monetization — game passes
Game passes for sale and their prices, measured from the Roblox passes API. Developer products bought inside the game aren’t publicly listable.
Badge funnel
How many players have ever earned each badge — a proxy for how far players get before they stop. Steep drop-offs mark where a game loses people. Win rate is the past-day share of players who earned it; categories are assigned by a language model from each badge’s own name and description.