Dungeon Keeper receives an open source remake and fan expansion in KeeperFX.
The Best Ioq3 Alternatives in 2026
Looking for something like Ioq3? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 22 are open source.
ioquake3 continues development of the Quake III Arena engine for supported platforms.
Top picks at a glance
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Keeperfx | — | Yes | — |
| 2 | Wiki / Forum | — | Not stated | Web |
| 3 | ModDB | — | Not stated | Linux, Web, Windows |
| 4 | Nitrox | — | Yes | Linux |
| 5 | Mod Menu | — | Yes | — |
| 6 | PAX | — | Yes | — |
| 7 | RingRacers | — | Yes | Linux, macOS, Windows |
| 8 | Raven M | — | Yes | — |
| 9 | UsefulMods | — | Yes | — |
| 10 | OpenBOR | — | Yes | Android, Linux, macOS |
All Ioq3 alternatives
Wiki / Forum
chronocrash.comBrowse the ChronoCrash community for OpenBOR games, engine resources, and game development discussion.
ModDB
moddb.comModDB covers game development and modding, with downloads for user-created content across Windows, Mac, and Linux.
Nitrox provides an open-source multiplayer modification for Subnautica, which its project describes as being in early development.
Mod Menu displays installed mods and can open their configuration screens when supported; it also supports multiple loaders.
PAX manages Minecraft modpacks for solo or team development and supports Forge, Fabric, and version control.
Ring Racers is a kart racing game based on the 3D Sonic franchise, with development notes in its repository.
RavenM is a community multiplayer mod for Ravenfield; its page notes that it is still in development and may have bugs.
UsefulMods collects game modification recommendations, and its page notes that the former list maintainer stopped updating it.
OpenBOR is a royalty-free sprite-based side-scrolling engine for beat 'em up games and other gameplay styles.
OpenMW Multiplayer adds multiplayer support to OpenMW, the open source engine for Morrowind.
Forge provides an unofficial rules engine for tabletop role-playing games, supporting character and game session management.
MCreator Link connects hardware such as Arduino and Raspberry Pi to Minecraft through MCreator procedures and mod developer APIs.
Play BeamNG.drive with other players using BeamMP, a multiplayer project.
XenonRecomp recompiles Xbox 360 games into native executables using a static recompilation tool.
Mod Organizer manages mod collections of varying sizes and is designed for people who experiment with mods and need profiles.
Widelands provides an open source real-time strategy game for players.
Unciv recreates Civilization V as an open source game for desktop computers and Android.
GithubLauncher downloads and updates applications from GitHub releases, with a former edition branded for N64Recomp projects.
The Peacock Project replaces servers for the HITMAN World of Assassination trilogy to preserve online play and add features.
Unnamed SDVX clone adapts K-Shoot MANIA and Sound Voltex as a rhythm game.
Bridge searches for rhythm game charts and downloads them for use in Clone Hero, YARG, and similar games.
r2modman manages mods for several games through Thunderstore, according to its project description.
N64Recomp statically recompiles Nintendo 64 game binaries into C code that can be built for multiple platforms.
Alternatives to similar tools
What is the best alternative to Ioq3?
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Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative
























