Sonic Adventure games in order

All 3 games of the Sonic Adventure series in the order they came out, from Sonic Adventure (1998) to Sonic Adventure 2: Battle (2001).

1. 
   Sonic AdventureDreamcast, GameCube, PC +2 · Sonic Team, Now Production
   6723 Dec
2. 
   Sonic Adventure 2Dreamcast, GameCube, PC +2 · Sonic Team
   7419 Jun
3. 
   Sonic Adventure 2: BattleGameCube · Sonic Team
   7420 Dec