John Horton Conway's Game of Life for Unity 3D
a mini-game, unlike Rome, built in a day.
Project files for Unity version 5.5.0f3
Hit Escape to pause. Then, move cursor with mouse and left-click to "activate" cells. Use scroll wheel to zoom in and out, and right-click-drag the canvas to pan it around. Hit Escape again to unpause and watch it evolve.
Fellow student Unity developers might want to notice the use of a coroutine in the Update method of the Board.cs script, necessary to keep the game from becoming unresponsive on each generation.