Save game compatibility depends on the library version of GnollHack included in various port builds. The following builds and port versions are compatible with each other.
| Compatibility Group | GnollHack Library Version Number | Android or iOS Version Number | Modern Windows Version Number | Cross-platform Compatibility1 |
|---|---|---|---|---|
| B | 4.2.0 Build 1 – Current | 1.73 – Current | 2.0.0 – Current | All platforms |
| A | 4.1.2 Build 7 – 4.1.3 Build 55 | 1.13 – 1.72 | N/A | Android & iOS |
- 1 Cross-platform compatibility means if you can transfer saved games from one platform to another. This will, however, make such games non-scoring.