As said in a recent post, I've been tossing around three different game systems to settle on for my game with my step-daughter. I was aiming for simple a rule system that supports role-playing more than tactics and combat. The runners up were Savage Worlds, True20 and the old out of print, but still my favorite, Top Secret/S.I. Well... another system as returned to my radar, Microlite20. This fills a lot of what I am looking for in a system. This is basically d20 stripped down and easily functional without a lot of the D&D 3rd ed baggage. There is even a Microlite20 Modern version. Here's a quote from the site:
Microlite20 is a minimalist role-playing game designed to be usable with the majority of d20 supplements, rules and adventures with little or no advance preparation. The rules for character generation, combat, magic and level advancement take up a single sheet of paper, meaning it is perfect for introducing role-playing to new players, gaming one-shot adventures or tailoring into your own game system. Downloads PDF editions of the rules, supplements, adventures, including pocketbook editions. These use the PocketMod folding technique to create miniature books of the rules, spell lists, monsters and more – true backpocket gaming! Core Rules This is the real thing. Also available from the download section as a PDF. The Macropedia Everything else: User-contributed House Rules, suggestions and expansions. Here you will find alternative magic systems, mass combat, and more.
Another terrific bonus to this system over the others is it is totally free. There is also a good deal of support for M20 and people are converting settings often. Another variant that caught my eye is SpyLite. This is to Spycraft what Microlite20 is to Dungeons & Dragons. Basically Microlite20, the espionage version.