Should I keep Intrusion 2 to trade?

It's a bundle game, I don't think it will be worth too much on trading.

You should trade it for a more valuable game, and then continue to trade until you get Skyrim. Then trade Skyrim for 50 copies of Fortix and make a massive giveaway

You should play it, it's pretty cool ;)

if you havent played it do that, if not just give it away here.

I already own it...