I bought Gladius years ago when it first came out and really liked it. I forgot about it until recently. This is a strategy game set gladiator arenas. All of the movement is turn based and each unit is unique with special abilities. This game can easily consume about 100 hours of your life making it an awesome summer time game for kids and adults alike. I like to think strategy games offer a little bit more intellectually than your typical shoot em up game. This game also gets very high marks from every review available.
This game helped interest by young boys in that particular time period so we ended up going to the library and getting some ancient Greece books and renting some educational movies on the subject. You can't do that with Halo 3 can you?