Chex Quest 3

Chex Quest 3 is a 2008 computer game which runs on the ZDoom engine. It was developed by Charles Jacobi, who was the art director and lead artist for and worked on the original Chex Quest. Charles credits Mark Quinn aka "Boingo the Clown" for giving him the motivation to work on Chex Quest again. The completion of this project by the original author, after failed fan-created attempts and a ten-year wait, was a huge surprise and Chex Quest 3 was well-received, earning one of the 2008 Cacowards.

Chex Quest 3 contains slightly updated versions of the maps from Chex Quest (episode 1) and Chex Quest 2 (episode 2), in addition to its new maps. However, it is not compatible with mods created for the original Chex Quest as it modifies several actors, including changes to their editor numbers.

New content include several textures and sprites, new monsters, as well as the five maps from Episode 3.

All maps are in the Hexen map format, and the WAD contains ZDoom-style lumps: DECORATE, MAPINFO, SNDINFO, ANIMDEFS, TEXTCOLO, LOCKDEFS, and LANGUAGE; therefore Chex Quest 3 can only be played on a ZDoom-compatible port.

Episode 1: Rescue on Bazoik

 * E1M1: Landing Zone
 * E1M2: Storage Facility
 * E1M3: Laboratory
 * E1M4: Arboretum
 * E1M5: Caverns of Bazoik

Episode 2: Terror in Chex City

 * E2M1: Spaceport
 * E2M2: Cinema
 * E2M3: Chex Museum
 * E2M4: City Streets
 * E2M5: Sewer System

Episode 3: Invasion!

 * E3M1: Central Command
 * E3M2: United Cereals
 * E3M3: Villa Chex
 * E3M4: Provincial Park
 * E3M5: Meteor Spacecraft

Engine
Chex Quest 3 includes a separate executable, called. This is a renamed build of ZDoom with a custom name and icon, and contains, according to the Chex Quest 3 readme file "appropriate changes to flemoids, projectiles, strings and more". The changes are however rather trivial in nature, with regular ZDoom officially supporting the game as an IWAD starting at version 2.3.0.

itself is based on ZDoom version 2.3.1 (r1480) dated June 23, 2009.

Projects based off Chex3.exe
Despite being practically the same as regular ZDoom, the Chex Quest community created various projects requiring :
 * Chex Quest 2.5 - A project to bring the unofficial Chex Quest 3 release (An illegal version based on Doom Legacy) to the official release, revamped and enhanced.
 * Community Quest - A mapset, made in the same vein as the Community Chest series.
 * The Stick Figure - A total conversion, where the player is a stick figure and needs to kill all enemies and the boss to save stickkind.