| Name | Types | |
|---|---|---|
| Xavier Belanche | Developer | |
| Xavier Ekkel | Developer | |
| Xavier Orion Games | DeveloperPublisher | |
| Xboite720 | Developer | |
| Xbox Game Studios | DeveloperPublisher | |
| Xbox Game Studios Japan | Developer | |
| Xbox Games Studio | Publisher | |
| Xcrypt | Developer | |
| XeaKK | Developer | |
| Xeen | Developer | |
| Xeethrax | Developer | |
| Xelart game studio | Developer | |
| Xelostar | Developer | |
| Xen | Developer | |
| Xen Games | Developer | |
| Xenation | Developer | |
| Xendex | Developer | |
| Xeneth | Developer | |
| Xenix Dev | Developer | |
| XenoHorizon | DeveloperPublisher | |
| XenoRocket | Developer | |
| Xenomoo | Developer | |
| Xenon | Developer | |
| Xenon Interactive | Developer | |
| Xenon Neko | Developer | |
| XenonGhost | Developer | |
| Xenoneo | Developer | |
| XenosNS | Developer | |
| Xenoxygene | Developer | |
| Xenvex | Developer | |
| Xeonadow | Developer | |
| Xephrys | Developer | |
| XerStudios | Developer | |
| Xerise | Developer | |
| XeroKimo | Developer | |
| Xerquay | Developer | |
| Xerra | Developer | |
| Xerxes | Developer | |
| Xevinaly | Developer | |
| Xexus | Developer | |
| XeyCreatorsClub | Developer | |
| Xfinge | Developer | |
| XformGames | Developer | |
| Xgor | Developer | |
| Xhems | Developer | |
| Xhin | Developer | |
| XiNFiNiTY Games | Developer | |
| Xibalba | Developer | |
| Xicat Interactive | Publisher | |
| Xicat Interactive, Inc. | Publisher |