Castlevania Advance Collection is a compilation package of 4 classic Castlevania games, released for Nintendo Switch, PC (via Steam), PlayStation 4 and Xbox One platforms by KONAMI in 2021 (on its 50th Anniversary Celebration). As its name suggest, this is just a pure collection of games + some supportive features, nothing else to look forward to. For example: the graphics of games are not as good as many emulators do. In other words, it is more suitable for fans of Castlevania to collect, and won't surprise you much.

Castlevania: The Dracula X Chronicles (AKA: Devil's Castle Dracula X Chronicle, Akumajō Dracula: X-Chronicle, 悪魔城ドラキュラ Xクロニクル, 恶魔城 X 历代记/编年史) is a 2.5D (namely 3D graphics + 2D operations) HD remake of the immortal masterpiece on PCE (PC Engine) platform - Castlevania: Rondo of Blood. It was released on PSP (PlayStation Portable) game console by KONAMI in 2007. This was the first time for the whole series of Castlevania games to launch on PlayStation Portable handheld game console.

Castlevania: Symphony of the Night (ANA: 悪魔城ドラキュラX 月下の夜想曲, Akumajo Dracula X: Gekka no Yasoukyoku, Devil's Castle Dracula X: Nocturne in the Moonlight) closely follows the storyline of Castlevania: Rondo of Blood, published by KONAMI in 1997 for SONY PlayStation console first, then transplanted to Sega Saturn in the next year, and landed PlayStation Portable in 2007. It is called the peak and an important milestone of the whole Castlevania series.