Hydroneer has a pretty interesting very unique crafting system. There's no menus, no virtual inventory, it's all based on placing objects on certain positions and crafting them into other objects.

V Rising is a recent hit (made with Unity!) and the game has some excellent mechanics that perfectly fit the theme, all of them based on Vampire myths.

Very unique WW1 Shooter with plenty of interesting mechanics. Learn how the Artillery, Gas and Arrows systems work!

If you're a fan of mysteries and interesting mechanics you'll love this one! Check out how you can remake the Scout Probe Launcher.

Fun concept and great game if you like to take things apart and build them back together. Watch how the Cleaning Minigame is made, it involves some interesting interactions with pixels!

Build up your settlement in this great Post Apocalyptic City Builder! One of the great systems in the game is the Soil Moisture-Radiation System to let's inspect it and see How it's Made!

This game is a masterclass in Game FEEL! If you want to learn how to make great games that hook the Player right away, study this game!

If you're a fan of Factory Automation games then this is a must-play! It's an extremely solid game even though it just entered Early Access, I look forward to seeing how it updates over time.