Play Castlevania Games on Emulator Online. We have the best Castlevania games online for different retro emulators including GBA, Game Boy, SNES, Nintendo and Sega. There are over 24 online Castlevania games in our collection. All of the games that you see here are without download, pick any and start playing right away. If you enjoy the game, be sure to vote for it and leave a comment. Castlevania games that started it all back in the day are now playable free within your browser! Start by playing some of our popular Castlevania online games like Castlevania, Castlevania: Aria of Sorrow, Super Castlevania IV and Castlevania - Circle of the Moon.