Recs.
Updated
GTA San Andreas is a 3D open world action adventure game that is a port of the Rockstar classic. It contains everything from the original, but has been tweaked to work with touchscreen controls.
SpecsUpdate
Pros
Pro Familiar multi-city world that is actually based off of real locations
There are 3 huge cities to explore: Los Santos, San Fierro and Las Venturas - each loosely modeled after certain real-world cities. In addition to the static map, other aspects of the game make it feel even more immersive. There's a fairly wide selection of vehicles, minigames and weird one-off events to find and take part in.
Pro Tons of content will keep you entertained for a long time
You could spend days going through just the main story itself, but there is a ton more content as well. Side missions add numerous more hours of gameplay, and one-off encounters can help keep you entertained as well. Depending on your mood, you might even just want to try abiding by all the laws and driving around. In-game, there's always something to do, and you have a choice of what you want to do during that particular gaming session.