Castlevania: Circle of the Moon cover art
CASTLEVANIA SERIES

Castlevania: Circle of the Moon
Online

Climb a hostile castle, combine magical cards, and grow stronger in an atmospheric early GBA adventure.

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Platform
GBA
Release year
2001
Developer
Konami Computer Entertainment Kobe
Genre
Action RPG
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Castlevania: Circle of the Moon

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ABOUT THIS GAME

A classic worth
one more run.

Circle of the Moon mixes deliberate whip combat and castle exploration with the Dual Set-up System. Pairing Action and Attribute cards creates a wide range of powers, encouraging experimentation as the map opens.

“The best retro games don’t ask for nostalgia. They earn it all over again.”
PLAYER'S GUIDE

What to know before you play

How Castlevania: Circle of the Moon plays

Circle of the Moon sends Nathan Graves through a large castle with whip combat, equipment, statistics, and new movement powers. Its Dual Set-up System pairs Action and Attribute cards to produce magic effects, from elemental weapons to defensive and mobility options.

Why it still matters

As an early GBA release, the game demonstrated that exploration-driven Castlevania could work as a portable format. Its darker presentation and deliberate movement differ from later handheld entries, while the card system remains one of the series’ most flexible approaches to optional abilities.

QUICK ANSWERS

About playing Castlevania: Circle of the Moon online

Can I play Castlevania: Circle of the Moon in a browser?

Yes. FreeRetro runs the GBA edition through an in-browser emulator after you select “Start game.” Nothing needs to be installed.

Which controls does it use?

Use the keyboard controls listed above — they match the emulator's defaults for this platform. The emulator menu also supports remapping and compatible gamepads.

When was the original released?

Castlevania: Circle of the Moon was released in 2001 for GBA and developed by Konami Computer Entertainment Kobe. This page preserves that original platform context rather than presenting it as a modern remake.