Update README.md

Deep-Fold · web-flow · commit d2fcb18e230c · 2021-11-01T15:28:36.000+01:00
diff --git a/README.md b/README.md
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 # PixelPlanets
 
 A collection of Godot shaders to generate pixel planets. Try a web version here: https://deep-fold.itch.io/pixel-planet-generator
+
 The web version only exposes some options, to use all options (noise generation, lighting, colors, etc.) you have to use the actual shaders.
 
-Godot shader code is GLSL. Big thanks to EnthusiastGuy who made a MonoGame HLSL version of the shaders, see here: https://github.com/EnthusiastGuy/MonoGame-Pixel-Planets
+Ports to other engines:
+ * Monogame port by EnthusiastGuy: https://github.com/EnthusiastGuy/MonoGame-Pixel-Planets
+ * Unity port by Hmc: https://github.com/hmcGit/UniPixelPlanet
+ * Defold port by Selimanac: https://github.com/selimanac/defold-pixel-planets
