http://www.faroffgames.com/xia/
One of the things that stood out is the ship outfitting minigame. Your basic ship has a grid that you tetris block shaped upgrades inside like engines (movement), weapons (blasters n missiles), shields (defense), and the leftover space is used for transporting goods.
The octagon on the engine and blaster tiles tell you how many times you can use them to move/shoot a turn, I like how all this gameplay information is presented in a visual format.
What other games (board, RPG, vidya) use this kind of "fit the pieces in a grid" minigame for vehicle customization? I've played Valkyria Chronicles and it uses a similar system for customizing your tanks. I think Battletech does something similar with the hitpoints assigned to each body segment and weapons being destroyed when the limb is destroyed, but they don't have the tetris block element. Star Wars Edge of the Empire just has "you have X customization slots, and Y customization elements will only work on Y sized vehicles or smaller"