CryEngine is a 3D engine developed by CryTech based in Frankfurt (Germany). Written in C++ it is versatile platform that is known for is immerse graphical quality and scalability. MiLANT employs CryEngine generation 4 to render forts and military structures. Since this is a non-profit project the use of this engine is free. This engine is commonly known for its FarCry game series. More information can be found on their website.