Blender, Cinema 4D, Twilight, Mitsuba, appleseed, RenderMan, Sunflow Rendering System, picoCAD, Octane Render, V-Ray, Artlantis Studio, Flamingo, LuxCoreRender, HDR Light Studio, POV-Ray, Adobe Dimension, Artlantis Render, owlet, Arnold, Pixie Renderer, Thea Render, NOX Renderer, YafaRay, fryrender, 3Delight, MiniLight, mental ray, FurryBall, Shaderlight, Indigo RT, FPrime Rendering System, lucille, VirtualRender, Click-VR Visualizer, OctaneBench®, RenderZone, Indigo Renderer are some alternatives to Kerkythea.