I built a card game engine from scratch, and now I'm working on a STEM-themed hexagon-shaped deck. The deck has 64 cards numbered from 0-F (as in base16) with the letter cards being "face" cards. Currently the suits are DNA, Planets, Beakers, and Micro-Chips but I could make the suits anything I want. http://metasmug.com/i/beakers_F.png http://metasmug.com/i/chips_0.png http://metasmug.com/i/planets_A.png http://metasmug.com/i/dna_9.png With my engine I can stack cards horizontally, vertically, or diagonally. Basically the engine handles all of the rendering on the playing table, and allows me to designate slots (hotspots on the table) with stacks (collections of cards). Since I already built a solitaire game with it, I have been trying that game out but it seems like it may be too hard to play solitaire with a 64-card deck. I suppose I could make an uno/skip-bo/phase 10 style game but I haven't actually created the multiplayer aspect of the engine yet. I can also do other puzzle type games, but this engine is mostly designed around collections of stackable card objects.