| Black Mesa | |
|---|---|
| Completed on 2016-05-23 | |
| |
| Type | [[List_of_Investigations#Community|Community]] |
| Creator | SometimesIDreamOfCheese |
| Discovered | 2016-04-11 |
| Completed | 2016-05-23 |
Main Page > List of Investigations > Black Mesa
Black Mesa was a Twitter-based ARG set in the Half-Life/Portal universe.