ags

bbge

box2d

devilutionx

easyrpg-player

exult

an Ultima 7 game engine that runs on modern operating systems

fifechan

fifengine

fizmo

freesci

frobtads

Curses-based interpreter and development tools for TADS 2 and TADS 3 text adventures

frotz

Curses based interpreter for Z-code based text games

fs2_open

gargoyle

Beautified Glk library and interactive fiction multi-interpreter

gemrb

Reimplementation of the Infinity engine

git

glkfrotz

glulxe

hugor

love

An unquestionably awesome 2D game engine

marauroa

massacre

megazeux

nazghul

A computer role-playing game (CRPG) engine with game called HaximA

nitfol

nxengine-evo

odamex

onscripter-en

openbor

openmw

openrw

openxcom

pilas

qtads

Qt-based multimedia interpreter for TADS 2 and TADS 3 text adventures

realtimebattle

renpy

residualvm

residualvm-tools

rlvm

scummvm

Reimplementation of the SCUMM game engine used in Lucasarts adventures

scummvm-tools

utilities for the SCUMM game engine

solarus

stratagus

A realtime strategy game engine

vassal

vassal-libs

wyrmgus

xash3d

xoreos

xzip

X interface to Z-code based text games

zoom

A fast, clean, modern Z-code interpreter for X

ags

glulxe

realtimebattle

bbge

hugor

renpy

box2d

love

residualvm

devilutionx

marauroa

residualvm-tools

easyrpg-player

massacre

rlvm

exult

megazeux

scummvm

fifechan

nazghul

scummvm-tools

fifengine

nitfol

solarus

fizmo

nxengine-evo

stratagus

freesci

odamex

vassal

frobtads

onscripter-en

vassal-libs

frotz

openbor

wyrmgus

fs2_open

openmw

xash3d

gargoyle

openrw

xoreos

gemrb

openxcom

xzip

git

pilas

zoom

glkfrotz

qtads