Realms Deep is an event organized by 3D Realms where up-and-coming retro shooters (and the occasional non-shooter game too) are showcased.
2021's edition also included a map jam that amounted to a total of 14 maps for a variety of games, which are:
- dsm1 by Demsix for DOOMBRINGER
- Talonhouse by DevilMaster for Prey 2006
- Basilica by DrkKsy for Quake Champions: Doom Edition
- drg by Drugod for Quake
- ScreamOfTheTriad by EmoLevelDesigner for Return of the Triad
- ExtremeChase by EmoLevelDesigner for Rise of the Triad 2013
- Nameless by Jimmy for GZDoom
- MonkeyTrouble by Josh for Super 3D Noah's Ark
- TheDeep by MajorArlene for GZDoom
- gravedanger by MegapiemanPHD for Dusk
- totfaw by Pagb666 for Powerslave
- Himalia by Philnemba for Doom 2
- BanjoKazooie by Shtovladya for Ion Fury (Beta, make a backup of the installation folder)
- Turok64 by Shtovladya for Ion Fury