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BStone - RetroBIOS
Type standalone
Classification Game engines
Source https://github.com/bibendovsky/bstone
Version v1.3.4
Profiled 2026-10-04
Cores bstone
Systems blake-stone
Checked by sha1
Technical notes

Source port of Blake Stone: Aliens of Gold and Blake Stone: Planet Strike.

The engine accepts nine data sets, each a table of file names and SHA-1 values in src/bstone/src/id_ca.cpp:1493-1688: Aliens of Gold shareware v1.0, v2.0, v2.1, v3.0 (.BS1), Aliens of Gold registered v1.0, v2.0, v2.1, v3.0 (.BS6) and Planet Strike (.VSI). has_content (src/bstone/src/jm_free.cpp:197-220) opens every file of a table, hashes each one and rejects the set on the first mismatch, so the files of one directory must all belong to the same version. Within a game the versions are tried in the order v2.1, v3.0, v2.0, v1.0 (src/bstone/src/jm_free.cpp:222-356).

find_contents (src/bstone/src/jm_free.cpp:626-773) looks for the three games, or only the one forced by --aog, --aog_sw or --ps, in these directories in order: 1. the --data_dir directory, when given 2. the working directory 3. the profile directory (--profile_dir, else the per-user data path) 4. the GOG install directories (Windows registry) 5. the Steam install directories (Windows registry) One complete set is enough. With none the engine stops on "Content not found." (src/bstone/src/jm_free.cpp:754); with several games found it asks which one to play. No single file is required on its own.

Each file is opened under its upper-case name first, then under the lower-case name (src/bstone/src/id_ca.cpp:940-961).

A --mod_dir directory is searched before the data directory for every resource. A MAPTEMP file found there replaces the level hash, unless it is the official level file of another version, which is refused (src/bstone/src/jm_free.cpp:918-950).

32 files | 0 required, 32 optional | 15 in repo, 17 missing Categories: 32 game data

AUDIOHED.BS1 optional in repo game_data
Aliens of Gold shareware audio chunk offsets

AUDIOT.BS1 optional in repo game_data
Aliens of Gold shareware audio data

IANIM.BS1 optional in repo game_data
Aliens of Gold shareware intro movie

MAPHEAD.BS1 optional in repo game_data
Aliens of Gold shareware map offsets

MAPTEMP.BS1 optional in repo game_data
Aliens of Gold shareware level data

SANIM.BS1 optional in repo game_data
Aliens of Gold shareware second final movie

VGADICT.BS1 optional in repo game_data
Aliens of Gold shareware graphics Huffman dictionary

VGAGRAPH.BS1 optional in repo game_data
Aliens of Gold shareware compressed graphics

VGAHEAD.BS1 optional in repo game_data
Aliens of Gold shareware graphics chunk offsets

VSWAP.BS1 optional in repo game_data
Aliens of Gold shareware walls, sprites and digitised sounds

AUDIOHED.BS6 optional in repo game_data
Aliens of Gold registered audio chunk offsets

AUDIOT.BS6 optional in repo game_data
Aliens of Gold registered audio data

EANIM.BS6 optional missing game_data
Aliens of Gold registered final movie

GANIM.BS6 optional missing game_data
Aliens of Gold registered third final movie

IANIM.BS6 optional in repo game_data
Aliens of Gold registered intro movie

MAPHEAD.BS6 optional missing game_data
Aliens of Gold registered map offsets

MAPTEMP.BS6 optional missing game_data
Aliens of Gold registered level data

SANIM.BS6 optional in repo game_data
Aliens of Gold registered second final movie

VGADICT.BS6 optional missing game_data
Aliens of Gold registered graphics Huffman dictionary

VGAGRAPH.BS6 optional missing game_data
Aliens of Gold registered compressed graphics

VGAHEAD.BS6 optional missing game_data
Aliens of Gold registered graphics chunk offsets

VSWAP.BS6 optional missing game_data
Aliens of Gold registered walls, sprites and digitised sounds

AUDIOHED.VSI optional missing game_data
Planet Strike audio chunk offsets

AUDIOT.VSI optional missing game_data
Planet Strike audio data

EANIM.VSI optional missing game_data
Planet Strike final movie

IANIM.VSI optional in repo game_data
Planet Strike intro movie

MAPHEAD.VSI optional missing game_data
Planet Strike map offsets

MAPTEMP.VSI optional missing game_data
Planet Strike level data

VGADICT.VSI optional missing game_data
Planet Strike graphics Huffman dictionary

VGAGRAPH.VSI optional missing game_data
Planet Strike compressed graphics

VGAHEAD.VSI optional missing game_data
Planet Strike graphics chunk offsets

VSWAP.VSI optional missing game_data
Planet Strike walls, sprites and digitised sounds

Generated on 2026-10-10T11:26:01Z