Alternatives to the Donner Dark Mouse

JHS PackRat 9-Way Rodent Distortion

Shared character: warm, dark, filter

ProCo RAT 2

Shared character: warm, dark, filter

MXR M69P Prime Distortion

Shared character: aggressive_playing, bright, distortion

Menatone None More Black

Shared character: warm, dark, distortion

MXR Prime Distortion

Shared character: aggressive_playing, bright, distortion

JHS 3 Series Distortion

similar tone character

Dunlop MXR M104 Distortion+

similar tone character

Dunlop Distortion III

similar tone character

Black Country Customs Monolith

similar tone character

Walrus Audio Fundamental Distortion

similar tone character

Maxon OD808

similar tone character

Electro-Harmonix Big Muff Pi

similar tone character

JAM Pedals Rattler V2

Shared character: warm, dark, filter

Catalinbread Katzenkonig

Shared character: dark, filter, aggressive_playing

MXR Distortion II

Shared character: aggressive_playing, bright, distortion

Aria Lil' RAT Distortion

Shared character: filter, aggressive_playing, distortion

RHC Rat Turbo Rat Distortion

Shared character: aggressive_playing, distortion

Joyo dark flame

similar tone character

Fulltone OCD Obsessive Compulsive Drive

similar tone character

Mr. Black Thunderclaw Distortion

similar tone character

NuX Lacerate

similar tone character

Suhr Riot

similar tone character

Walrus Audio Fundamental Series Distortion

similar tone character

Dunlop MXR M78 Custom Modified OD, also known as the Bad Ass Modified OD

similar tone character