Diamond Run is an arcade game released in 1989 by KH Videos, based on the Commodore C64 classic 'Boulder Dash'. I recreated it as faithfully as possible using Unity, adding new levels and UI. I plan to make a mobile version of it, with an in-game level editor.

To find your way out of the caves, you will have to cleverly use your environment to deal with dangerous monsters. The exit doors are unlocked only after collecting a certain amount of gems. Diamonds are worth 3 gems, while emeralds are worth 1 gem and can crush your character. Your time is limited, but each gem collected gives a small time bonus.

More details on the original arcade game can be found here:
https://www.arcade-history.com/?n=diamond-run&page=detail&id=635
https://classicreload.com/https%3A//classicreload.com/Diamond-Run.html

Diamond Run (itch) (Bastien Joubioux) screenshots