KartRider is a game that apparently is extremely popular in South Korea. According to Wikipedia, 15,000,000 South Koreans have played the game, meaning 25% of all South Korean's have played the game at least once. KartRider is essentially Mario Kart, but to me, it feels like it has Diddy Kong Racing in the mix there too. Here is my review on KartRider.
Graphics: 4/5 Not amazing, but still look great. Even on 256MB-512MB of RAM, the game will run perfectly smooth. There is some lag around, but that's expected for a game like this. The maps look good, the characters and karts do as well, very well done.
Sound: 3.75/5 It's kind of lacking. The music in the menu and in-game is pretty catchy, I must say, but the music on the snow levels sounds strikingly similar to the songs in the game Diddy Kong Racing. There are also little things. When in game lobby's, you can do face combinations, such as: >.< , <3 , TT, LOL, and more, and your character will do the action, which is pretty cool.
Control: 4/5 The game controls fine, it's just that the amount of money it costs to buy a go-kart isn't even worth it, as the karts seem to run the same speed, and control the same way. The only difference is the look of them. Very simplistic controls, but the drift is pretty much useless in most situations, and there's no point of it, at least in Item races.
Fun: 4.75/5 KartRider is just SURPRISINGLY deep. There are maybe 12 tracks, ( Not too sure ) but there is great variety. Some of them look similar to those of Mario Kart and Diddy Kong Racing tracks, but that's not at all a bad thing. KartRider is basically a Go-Kart RPG, and it's a lot of fun. It's not perfect, but it's a lot of fun. And the BEST thing about it? It works on some older computers quite easily, AND it's absolutely free.
[Mainly because of the $0 pricetag, and addictiveness.]