This game really is a DOS game, because it′s just a hacked Ultimate Doom (just as could be created with a utility like DeHackEd). However, only DOOM.EXE and SETUP.EXE are DOS programs, the rest of the EXE files were for Windows (but those programs are not essential in any way).
So this game should run fine in dosbox. However, there is a bug in the final level which causes the game to crash with a Visplane Overflow error. The only way to remedy this is to use a limit-removing port. Most Doom ports these days are like that, but they also change a lot of other things about the game. If you want something closer (more authentic) to the original game, your best bet is to build Chocolate Doom yourself with modified (increased) static limits, or to use a fork that already takes care of that for you, such as this one:
Chex Quest 2 is just an add-on to the first game, so you can run it the same way.
Chex Quest 3 however is a ZDoom-based game, and so will run only on that port.
- Year: 1996
- Platform: DOS
- Released in: United States
- Genre: Action
- Theme: FPS, Licensed Title, Sci-Fi / Futuristic, Shooter
- Publisher: Ralston-Purina
- Developer: Digital Cafe
- Perspective: 1st-Person
- Dosbox support – http://www.dosbox.com/comp_list.php?showID=3491 – Fully supported on 0.70