I’ve been developing a retro styled isometric game for the last couple of years called Melkhior’s Mansion. It’s a tribute to Ultimate Play The Game’s old ZX Spectrum games after starting out life as an isometric remake of Atic Atic, but becoming more than that as the project has progressed.
The current version uses Monogame 3.7, but I will be looking to upgrade to 3.8 when I come to port to other platforms.
The game is based on an isometric engine that I’ve been developing since the XNA days. It’s quite mature now and maybe one day I’ll look to release it as an isometric library.
Hope you like it.