Does anyone know a store where you can sell video games for alot of money?

May be...

I have alot of war and Fighting games i don't want them anymore!

Ebgames,

but they usually don't give that much for your games

try your nearest flea market

or just try ebay

well your not going to get "alot" of money at any store, they have to buy it from you and sell it under regular retail price and still make a profit. your best bet is to try to sell it yourself if you want "alot" of money

well the flea markets are the best places to sell it i sold Assassin's creed for $15 while i could have gotten it in the stores for like around $5