Freeware game engines

2D fighting video game engine

MikuMikuDance (commonly abbreviated to MMD) is a freeware animation program that allows users to create animated and still renders, originally produced for the Japanese Vocaloid Hatsune Miku, the first member of the Character Vocal series created by Crypton Future Media. The program was developed by Yu Higuchi (HiguchiM) and has gone through significant upgrades since its initial creation. Its production was made as part of the VOCALOID Promotion Video Project (VPVP).

Amazon's variant of the CryEngine game engine

game engine

PhyreEngine is a license-only free to use game engine from Sony Interactive Entertainment, compatible with PlayStation 4, PlayStation 3, PlayStation VR, PlayStation Vita, PlayStation Portable, Nintendo Switch, Microsoft Windows (for OpenGL and DirectX 11), Google Android and Apple iOS. PhyreEngine has been adopted by several game studios and has been used in over 200 published titles.