Soft3D engine archaeology

• Engine written in C++, at least some builds include RTTI

File formats overview

	File extension	Platform(s)	Notes & open questions
✔️	S3DTEX		images/textures, well-understood
❌	S3DSTY
❌	SAI		probably 3D model animations
✔️	SAU	DA320 (all), GA330, S60v1 (chi), S60v2, S60v3, Win32 (chi)	AMI ADPCM audio, well-understood
🔧	SBN	GA330	font (glyphs) + text data (32-bit encoding), mostly understood Why is the header length not always the same? How to calculate glyph indexes across SBNs?
🔧	SBN	Win32	font (glyphs) + text data (7-bit encoding), mostly understood
🔧	SBP	GA330	maps, based on Quake 2 map format, mostly understood How to interpret all the chunks? How are lightmaps applied?
❌	SDT		various data tables without a common format?
🔧	SPL		Camera settings
🔧	SOJ		3D objects, mostly understood Skinning? Animations?
🔧	SST		“simple script”, mostly understood
✔️	STX		images/textures (RGB444), well-understood
✔️	STX		images/textures (RGB565), well-understood
✔️	WAR	DA320 (old), S60v1 (eng), Win32 (eng)	AMI ADPCM audio, well-understood

Let us know if you have had success parsing files from platforms not listed in the table!

Some links

7 Days

• Table of known versions of the game
• http://legendsworld.net/adventure/game/2455
• http://www.legendsworld.net/phpBB3/viewtopic.php?f=5&t=9745
• https://imgur.com/a/3IMWR7r
• https://sourceforge.net/projects/spkextractor/

Misc

• Domestic "Silent Hill" IMGA award-winning mobile game-"7 Nights", can not afford the award (story of the demise of Dingoo Games, in Chinese)

Games known to use the engine

• 7 Days: Salvation
• 天地道 aka Hellstriker II (ships on GA330)
• 斗地主 (ships on GA330)

Platforms

• Dingoo A320
• Gemei A330
• Symbian S60
• Win32