GnollHack's age ratings are the following, depending on the region:
| Region | Logo | Ages |
|---|---|---|
| Australia |  |
15+ (Under 15 with parental guidance) |
| Brazil |  |
All |
| Europe (except Germany) |
 |
7+ |
| Germany |  |
12+ |
| Indonesia |  |
13+ |
| North America |  |
10+ |
| South Korea |  |
All |
| Other regions |  |
7+ |