Gem Hero is a set of 3D printable replacement pieces for "GemBlo", a simple strategy game for 2 to 6 players. The expanded edition "GemBlo Deluxe" is larger than the original and has 3D "gem" pieces, but it is unfortunately out of print and difficult to get a hold of.
Check out the project on GitHub and Thingiverse.
The original GemBlo comes with a large hexagonal tray to hold the gems, much larger than the printing space available in my printers. I was able to craft the trays and slot them together during gameplay. This also made storage easier.
This article is a part of the 3D Printing set.