ags

box2d

boxtron

devilutionx

dhewm3

dMagnetic

easyrpg-player

exult

an Ultima 7 game engine that runs on modern operating systems

fheroes2

fifechan

fifengine

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

instead

love

An unquestionably awesome 2D game engine

mcarpet2

minetest

nxengine-evo

odamex

onscripter-en

openmw

openxcom

ponscripter-fork

qtads

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

renpy

rlvm

scrap-engine

scummvm

Reimplementation of the SCUMM game engine used in Lucasarts adventures

scummvm-tools

utilities for the SCUMM game engine

seventhsense

solarus

stratagus

A realtime strategy game engine

wyrmgus

xoreos

xzip

X interface to Z-code based text games

zoom

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

ags

fs2_open

qtads

box2d

gargoyle

renpy

boxtron

gemrb

rlvm

devilutionx

instead

scrap-engine

dhewm3

love

scummvm

dMagnetic

mcarpet2

scummvm-tools

easyrpg-player

minetest

seventhsense

exult

nxengine-evo

solarus

fheroes2

odamex

stratagus

fifechan

onscripter-en

wyrmgus

fifengine

openmw

xoreos

freesci

openxcom

xzip

frobtads

ponscripter-fork

zoom

frotz