Stellar 7 was released in the 1980s for various platforms ending with a PC version in 1990.
This section lists the file formats used in the game.
- RES Format - group files storing most of the game data
The PC version appears to have been compiled with a Microsoft C compiler. Much of the data is stored in bundled .RES files but a decent amount is also hard-coded in the packed executable. Some of the data in the external files is also compressed using an LZW algorithm.
RES game data
There are 29 files in the PC version using the RES format.
|STELLAR.RES||Video/Audio (drivers?), probably the game intro song, what looks like fonts, and others.|
|COCKPIT.RES||Cockpit graphics and sound effects, mission briefing text, and others.|
|DRAXON.RES||A single SNG: media entry.|
|VOICE.RES||Contains some SNG: media entries.|
|LEVEL#.RES||There are seven level files where # is 1-7. These files contain background images in VGA and EGA/CGA, a sound entry, and what appears to be a table of level data.|
The rest of the files come in two versions, a VGA version and an EGA/CGA version. The easy-to-spot difference between them is the EGA files have a letter E after them. The files are:
|STELART.RES / STELARTE.RES||Art files with palette info necessary to parse images from anywhere else.|
|SCENEx.RES / SCENExE.RES||Sixteen "scene" files, eight each where x is one of A, B1, B2, B3, B5, C, D, or E.|
- RESOURCE.CFG contains the current configuration set by INSTALL.COM. The first byte is the selected video mode (monochrome CGA up to 256-colour VGA) and the second byte is the selected sound card.