Sega have pretty much only been a Japanese company up until the left hardware so you wont have heard of much if you didn't play Sega consoles.
Some of there more epic RPGs games are 'Shenmue' 'Panzer Dragoon Saga' 'Phantasy Star IV' 'Skies of Arcadia' 'Shining Force' 'Dragon Force' 'mystaria' and 'Beyond Oasis'
Other games you might know, Jet Set Radio, Panzer Dragoon series, REZ, NiGHTS into Dreams, Guilty Gear series, Streets of Rage series, Virtua-On, Yakuza, Virtua Fighter, OutRun, Sega Rally, Total War series, Football Manager Series, Burning Rangers, Golden Axe, Ecco, Shinobi..
The list goes on and on tbh. Sega probably have more discontinued hits then most other games companies have games. Despite being the underdog and usually only a cult following in the past your going to start hearing more about Sega in a big way now they have got there act together.
Up coming Sega PC games:
[PC]
- Universe At War: Earth Assault
- Sega Rally
- Aliens RPG
- Aliens FPS
- Storm Chaser [rumored]
- Medieval 2 Total War Kingdoms Expansion
- Shenmue Online
- Beijing 2008
- Football Manager Live/mmo
- Iron Man - Hulk - Cap America - Thor
- Typing of the Dead 2
- Sega Splash Golf
p.s I co-run a Sega fan site, www.seganerds.com