| RPG Maker MV/MZ | .rpgsave, .rmmzsave | Stable | Yes | Yes | Yes | ok for supported payloads; compression strategy preserved on export. | 2026-02-07 |
| RPG Maker VX/VX Ace/XP | .rvdata2, .rvdata, .rxdata | Unsupported | No | No | No | unsupported_ruby_marshal (Ruby Marshal not implemented in web editor). | 2026-02-07 |
| Unity | .xml, .plist PlayerPrefs | Stable | Yes | Yes | Yes | ok; source key order and source value type are preserved during rebuild. | 2026-02-07 |
| Unity | Binary PlayerPrefs | Unsupported | No | No | No | unsupported_binary_plist, unsupported_binary_playerprefs (strategyized detection). | 2026-02-07 |
| Ren’Py | .save | Experimental | Yes | Yes | Yes | ok; writes restricted to primitive values under persistent. | 2026-02-07 |
| Unreal Engine | Standard GVAS .sav | Stable | Yes | Yes | Yes | standard_gvas. | 2026-02-07 |
| Unreal Engine | Wrapped GVAS (gzip/zlib) | Stable | Yes | Yes | Yes | compressed_repackable; safe recompression supported for gzip/zlib only. | 2026-02-07 |
| Unreal Engine | Other wrapped/custom .sav | Read-only | Yes | No | No | compressed_readonly, unsupported_container, decompression_failed, decompression_limit. | 2026-02-07 |
| Palworld | Player .sav | Stable/Guarded | Yes | Yes | Yes | Unreal-compatible mode + heuristic quick fields with confidence and ambiguity tracking. | 2026-02-07 |
| Palworld | Level.sav (world) | Read-only | Yes | No | No | world_file_limited; inspection-first until safe world mapping is available. | 2026-02-07 |
| GameMaker | .json, .ini | Stable | Yes | Yes | Yes | ok; INI comment/section/key order are preserved, with multiline + escape round-trip coverage in parser regressions. Raw fallback uses raw_fallback when structured parse fails. | 2026-02-07 |
| NaniNovel | .nson/.json/base64/gzip/zlib/base64+gzip | Stable | Yes | Yes | Yes | ok; raw-deflate/json/base64/gzip/zlib/base64+gzip wrappers supported. | 2026-02-07 |
| NaniNovel | Encrypted/custom containers | Unsupported | No | No | No | likely_encrypted_container, unsupported_naninovel_wrapper. | 2026-02-07 |