will mods for doom 1 work with doom 2?

[that spy was a cow]

[[AU] Tabris:DarkPeace]

Sometimes yes, usually not though. The games differ just enough to break 'compatibility' between the two.

[Ayumu Kasuga]

weird, doom 1 is the same thing as doom 2 lol

[[AU] Tabris:DarkPeace]

The IWADs have different texture names, music, sprites, etc.

[UltimateDoomer]

Originally posted by TomokoKuroki:

weird, doom 1 is the same thing as doom 2 lol

No they aren't. They both use the same engine, except DOOM 2 has new stuff added which is not available in DOOM 1, and DOOM 1 has some textures that are not in DOOM 2. Therefore a mod/WAD for DOOM 2, which will almost certainly require some textures or monsters or items from DOOM 2, will not work with DOOM 1 or vice versa (unless it's a gameplay mod such as Brutal Doom which is designed to be compatible with both).

[Ayumu Kasuga]

doom trailer is coming
oh interesting, not to mention the super shotgun, a big great add to the game

[baddude1337]

Generally, Gameplay mods tend to work with Doom 1, 2 and Final Doom. Megawads and general level wads are specific to the game they are made for.

For example, I can play Guncaster in Doom 1, 2 and Final, but the Hell Revelaed mapset is only for Doom 2.

[Flaming Nachos]

Its depends on what kind of mods you are talking about, and to work this out, we need to understand how DOOM mods work.

DOOM1 and DOOM2 store all their game data in what is called a IWAD file. This file is divided in to lumps for levels, music, monsters, sprites etc. When the engine starts, it loads data from the lumps in this file to start the game. Now mods are stored in a PWAD file which is short for Patch WAD. The lumps inside the PWAD will replace their counterparts in IWAD, when the engine merges the PWAD and the IWAD together. So if you make a pwad with a level called MAP01, that map will override the existing MAP01 level in DOOM2.

This brings me to my next point. DOOM1 and DOOM2 list the levels in the lump data differently. Because of the episode nature of DOOM1, levels are named by episode and map number. A classic example is the first level: E1M1. The same could be said for the first level of Episode 2: E2M1.

DOOM2 doesn't use episodes. Instead it lists levels as maps. This means the first level is called MAP01, the second is MAP02.

Because of the different naming conventions, maps designed to work in DOOM1 will not work with DOOM2. There are however, other kinds of PWADS that can work with both DOOM1 and DOOM. An outstanding example is Brutal Doom.