# Limitations

As with all platforms, here are the current limitations you should keep in mind while building your Metaverse on GMetri:

* [ios-support](https://docs.gmetri.com/guidelines-compatibility/limitations/ios-support "mention")
* [vr-mode-support](https://docs.gmetri.com/guidelines-compatibility/limitations/vr-mode-support "mention")
* In [Multiplayer ](https://docs.gmetri.com/metaverse/multiplayer#multiplayer-mode)Mode: [#room-concurrency-limit](https://docs.gmetri.com/metaverse/player/concurrency#room-concurrency-limit "mention")
* Asset Limitations:
  * [Supported File Types](https://docs.gmetri.com/guidelines-compatibility/compatibility/supported-file-formats)
  * Images: r[esolution limits](https://docs.gmetri.com/guidelines/experience-optimizations/image-optimizations#image-resolution-and-file-size-recommendation)
  * Audio: [audio autostart limitation](https://docs.gmetri.com/guidelines/experience-optimizations/audio-optimizations#audio-autostart-limitations), [number of audio elements](https://docs.gmetri.com/guidelines/experience-optimizations/audio-optimizations#audio-limitations), [maximum conurrent audio](https://docs.gmetri.com/guidelines/experience-optimizations/audio-optimizations#video-number-of-parallel-streams)
  * Video: [resolution limits](https://docs.gmetri.com/guidelines/experience-optimizations/video-optimizations#videos), [maximum concurrent video](https://docs.gmetri.com/guidelines/experience-optimizations/video-optimizations#video-number-of-parallel-streams)
  * 3D Models: [max polycount recommendation](https://docs.gmetri.com/guidelines/asset-guidelines/3d-modelling-guidelines#3d-model-recommendations)