Raze is a Build engine port with modules for the most important classic Build games (Duke Nukem 3D, Blood, Shadow Warrior, Exhumed/Powerslave, Redneck Rampage), but it is heavily influenced by the GZDoom port. This results in a few features which were derived from GZDoom and are not found in other modern Build ports such as EDuke32, RedNukem, or BuildGDX.
Raze is able to load several .def files at once. Normally, only one can be loaded -- others have to be included from the one def file that is loaded. If a def file's name ends with the -raze substring (e.g. duke3d-raze.def) it will be loaded in cumulative mode.
Similarly to the lump filtering present in GZDoom, zip files can contain folders that will only be loaded if the relevant game is being played, allowing a single archive to accommodate several different games. The following filters are available:
- Any Blood game.
- The core Blood game specifically.
- The Cryptic Passage extension to Blood.
- Any version of the full Duke Nukem 3D game, from the original 3-episodes release to the 4-episodes Atomic Pack to the 5-episode 20th Anniversary World Tour re-release.
- The original Duke Nukem 3D game.
- The extension Duke it Out in DC.
- The extension Nuclear Winter.
- The extension Duke Caribbean: Life's a Beach.
- The fifth episode Alien World Order from the 20th Anniversary Edition, repackaged as an extension using .
- The unofficial Duke!ZONE II shovelware extension.
- Any version of Exhumed/Powerslave
- The version specifically released as Exhumed (European release).
- The version specifically released as Powerslave (American release).
- Any version of NAM.
- The base game only.
- The NAPALM extension.
- Any of the three Redneck Rampage titles.
- The original Redneck Rampage game.
- The sequel Redneck Rampage Rides Again.
- The extension Sucking Grits on Route 66.
- Any version of Shadow Warrior.
- The original game.
- The Twin Dragon extension.
- The Wanton Destruction extension.
- Any version of WWII GI
- The Platoon Leader extension.
- The original game specifically.
The same language as in GZDoom, though integration is currently limited to UI elements such as status bars, menus, and cutscene management. ZScript in Raze does not allow defining new game logic elements, since game logic is split between four different game engines (Blood, Duke, Exhumed, and Shadow Warrior).