Deadlock Dev Uses ChatGPT to Help With Matchmaking Code

A month ago, Deadlock promised a matchmaking system overhaul, and it seems they've delivered. A Valve engineer, Fletcher Dunn, recently revealed on Twitter (now X) that the new algorithm for their upcoming MOBA-hero shooter, Deadlock, was discovered with the help of ChatGPT. Dunn shared screenshots of his conversation with the AI chatbot, where ChatGPT suggested the Hungarian algorithm as a solution.

Deadlock's Matchmaking: From Criticism to ChatGPT Solution

Player Backlash Against Deadlock's MMR System

Deadlock's previous MMR matchmaking faced significant criticism from players. Reddit threads were filled with complaints about uneven matches, with players consistently facing highly skilled opponents while their teammates lacked comparable experience. Common sentiments included being repeatedly matched against experienced players while on a team of newer players, leading to frustrating gameplay experiences.

(c) r/DeadlockTheGame

The Deadlock team acknowledged these concerns. A developer previously announced on Discord that the existing hero-based MMR system was undergoing a complete rewrite due to its inefficiencies. This rewrite, according to Dunn, led to the adoption of the Hungarian algorithm, found through ChatGPT.

Dunn enthusiastically shared his experience, noting ChatGPT's increasing utility in his workflow, even dedicating a permanent browser tab to it. He acknowledges both the positive and negative aspects of using AI, highlighting the speed and convenience while also noting its potential to replace human interaction in problem-solving and collaboration. He's countered skepticism about AI replacing programmers by showcasing its practical applications.

Algorithms are the backbone of many systems, including search engines like Google. They process data based on predefined rules to produce results. In gaming, an algorithm could match players based on various factors. Dunn specifically sought an algorithm in ChatGPT that prioritized one side's preferences (e.g., ensuring a player is matched with suitable teammates), a common challenge in bipartite matching problems (involving two sets, such as players and teams).

Despite the improvements, some players remain critical, expressing their dissatisfaction with the new system and questioning the developer's use of ChatGPT for such a critical aspect of the game.

Here at Game8, we remain optimistic about Deadlock's potential. You can read more about our impressions and playtest experience in the article below!