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Mega Drive · Puzzle

KłełeAtoms MD

Choose a ROM to play. If a hosted file is on S3, it starts by itself.

EmulatorJS (open source, GitHub) · Touch pad on phones. A Bluetooth gamepad is better for fighters and karts.

Controls

On a phone, use the on-screen pad. A Bluetooth gamepad works too.

D-pad← ↑ ↓ →
AS
BX
CZ
StartEnter

KłełeAtoms MD is Nightwolf-47's Mega Drive puzzle. Players take turns adding atoms to squares. An overloaded square explodes into its neighbours and takes them over. The last colour on the board wins. This ROM is hosted under the MIT license.

Walkthrough

KłełeAtoms MD is a free Mega Drive chain-reaction game. The ROM loads when you open the page. Fill squares until they burst and take over the board.

  1. Title

    Title

    Press any button to reach the main menu.

  2. Set up

    Set up

    Pick the board width and height, make players human or CPU, then press the green play button.

  3. Place atoms

    Place atoms

    Move the cursor and press A to add an atom. Corners burst at 2, edges at 3, middle squares at 4.

  4. License

    MIT. Source: https://github.com/Nightwolf-47/KleleAtoms-MD. Commercial ROMs are not hosted.

FAQ

Is KłełeAtoms MD free to play here?

Yes. Nightwolf-47 released it under the MIT license, and this page hosts that ROM.

Can I play alone?

Yes. Set the other players to CPU in the main menu.

Are there cheat codes?

No published cheat pack. Save-states are in the emulator menu.

Can I play it on a phone?

Yes. The on-screen pad covers the D-pad and A, B, C. It also supports the Mega Mouse in emulators that have one.

Who made it?

Nightwolf-47, first released in 2022; this is v1.2.1 (2025). Source: https://github.com/Nightwolf-47/KleleAtoms-MD

More games

Emulator cores live on S3. A game starts from a hosted ROM when that file exists, or from a local file you pick. Local files are not uploaded.