The phrase "sweet loot" means finding or getting something really good, valuable, or desirable, usually in a game or treasure hunting context. Full definition
There were some awesome helmets on display, and plenty of other sweet loot that I mostly had to bypass due to limited funds. (wolfsgamingblog.com)
Double the price, but it's in stock and you score some potentially sweet loot. (technobuffalo.com)
Most of the gameplay consists of you making your way from one dungeon to the next, beating up monsters and snagging sweet loot along the way, but it's very whimsical about how it does things. (heypoorplayer.com)