Let's examine whether Deadlock has an MMR system and how it may work.

Valve is reworking Deadlock's broken matchmaking, as the current MMR system isn't working as intended, with the fix dropping soon.

Deadlock has added a LOW PRIORITY Queue and a new Behavior System: -The primary way to enter LPQ this is through abandoning games, but can include other behavior.

How does Deadlock MMR work? Valve has not publicly disclosed exactly how the game's MMR system works. However, the community generally theorizes that it is hero-based, meaning a player will have ...

Valve has taken their first step in Deadlock towards that goal by introducing two things: A low priority queue system and a behavior system.