3DGE

3DGE, also called Hyper3DGE (internally referenced as EDGE2, also sometimes referred to as just "EDGE"), is the successor to EDGE. Originally created to power the Hypertension TC, its goal was changed to a full-fledged successor to EDGE after Andrew Apted discontinued the parent port. The first version, numbered 1.35d, was released on 2011-04-11. The latest version is, released on. The first version of Dream3DGE, numbered 1.29dc, was released on 2013-09-18, and is playable on the. The port comes with Windows and Linux binaries, though the user can build the Macintosh and Dreamcast versions from source. 3DGE was initially forked from EDGE 1.32, and the codebase was merged with the final EDGE 1.35 release the day EDGE ceased development.

As well as adding new features, the team also incorporated many fixes for overlooked bugs left behind from EDGE. The name is a deliberate play on EDGE - the "3" is to symbolize the third line of continuation from EDGE and DOSDoom, and is pronounced the same as EDGE. The port is hardware-accelerated only, and also implements support for KallistiGL (PowerVR) for the Dreamcast platform.

A few notable mods in development are Duke it Out in DOOM and, both by Chris Mullen (CeeJay), and a to the Marc A. Pullen (Fanatic) mod QDOOM. SLaVE and Hypertension: Harmony of Darkness are two commercial products using this engine, both being developed by Isotope Softworks and published by Goat Store Publishing. The full list of known and active mods are here.

Dream3DGE was a Sega Dreamcast-only port of EDGE 1.29, and has high compatibility with pre-1.31 mods, as it cannot currently run anything created with EDGE 1.31 or above. It must be built with KallistOS. It contains most, if not all, functionality from the parent port. This branch (and EDGE 1.29, on which it was based) was abandoned officially and rewritten and integrated back into 3DGE with version 2.0. The Dreamcast code utilities KallistiGL instead of OpenGL for important rendering functions concerning the SH-4 CPU.

Features
As of the development builds for v2.1.0:
 * Dual OpenGL 1.x/2.1 Renderer
 * SDL2 Integration
 * UDMF support
 * PAK/PK3/PK7
 * Rendering interpolation
 * OPL synth playback
 * Basic Shadows
 * Several major and minor bugs squashed from EDGE 1.35
 * Heretic/Chex IWAD support
 * 2 player splitscreen co-op or deathmatch (local only)
 * RoQ video support for cinematics
 * Runs on the Sega Dreamcast console.
 * GLSL Post-processing effects
 * Normal/Spec/Brightmap support on models
 * DDF/RTS enhancements and bugfixes
 * Normal/Spec/Brightmap support on models
 * DDF/RTS enhancements and bugfixes

In-Progress

 * PolyObjects (available in the latest devbuilds, more types will be supported in the future)
 * Normal/Spec/Brightmap support on textures
 * True Inventory Support
 * Camera-Man Script: New scripting language which allows the engine to utilize spline-based cameras for in-engine cutscene and complete camera control, also linked through COAL.
 * Dynamic Planar Shadow System for Dynamic Lights
 * Half-Life MDL and MS3D Model Format Support
 * Quake 3: Arena-style shader-based sky system
 * Better BOOM Compatibility
 * Decals on all surfaces
 * Wolfenstein 3D support (WLF_*)
 * Rise of the Triad support (ROTT_*)
 * Blake Stone support (BLK_*)
 * Strife IWAD

Heretic support is being finalized and is in beta as of, using a similarly named definition file called HDF (Heretic Definition File). The HDF definitions were written initially by CeeJay, before the 3DGE Team took over to write proper IWAD support.