Leadwerks just released version 4.1 of their beginner focused 3D game engine. The Leadwerks engine is currently available at 80% off as part of the Steam summer sale.
New features of this release from the release notes:
Environment ProbesThe new environment probe entities can be used to add global illumination and reflections to any scene.
Volumetric LightingEach light in Leadwerks can now display an adjustable volumetric effect using a ray-marching technique to give your game dramatic visuals.
Enhanced Post-Processing EffectsLeadwerks 4.1 includes new built-in post-process effects including volumetric light scattering and screen-space ambient occlusion. Older effects like bloom have been updated for improved visuals.