You don't always have to give up classics, thanks to open source. RollerCoaster Tycoon 2 continues living on with a fresh update of the re-implementation OpenRCT2. It attempts to provide everything from RCT2 as well as many improvements and additional features, along with cross-platform support.
Release v0.3.0 "Every Script is Sacred" is out now, which continues to improve the foundation enabling you to enjoy the game even more. Like a lot of open source game engines, it's never really done. OpenRCT2 is very playable though, even with online multiplayer.
There's also numerous bug fixes and other improvements like allowing water and land height changes on park borders, build hash written into screenshot metadata, handymen are less likely to get stuck in ride queues, guests should no longer scream constantly on smaller rides, some RCT1-specific fixes and so on. Lots of important fixes to improve the flow of the game.