The following game developers have indicated that they will permit content from their games to be ported to other games, provided it is not for profit and full credit is given and other requirements have been met.
- GSC GameWorld (Stalker)
- Running with Scissors (Postal 2)
- Microsoft (Details)
- Valve [LIMITED] Re-compiling content among Valves titles ONLY
- Mojang Studios (Minecraft)
- Black Mesa Modification Team
- Hi-Rez Studios
- Bethesda Softworks
The following game developers have not responded to inquiries on their porting policy and their current TOS/Legal either doesn't expressly forbid it or make mention of the subject. As such, any submissions using content from these developers may be taken down without warning as per Digital Millennium Copyright Act (DMCA) Policy.