Foundry Users: What Game Should I Run to Learn The Platform

[aramis erak]

I have been using Fantasy Grounds for years but want to give Foundry an honest go. So I am looking for recommendations on what game to run using Foundry. I want a game that shows off that platform's strengths and unique qualities. Plus, you know, one that is fun.

Difficulty: no D&D.

I learned it running Alien... but I was running it on the server of one of the players.