ChatGPT Aids Deadlock Dev's Matchmaking Code

Deadlock, Valve's upcoming MOBA-hero shooter, recently revamped its matchmaking system. A surprising detail emerged: a key part of the new algorithm was discovered using the AI chatbot ChatGPT, as revealed by Valve engineer Fletcher Dunn on Twitter (X). Dunn shared screenshots of his ChatGPT conversation, where the AI recommended the Hungarian algorithm for Deadlock's matchmaking and hero selection.

Deadlock's Matchmaking: From Criticism to ChatGPT Solution

Deadlock's previous matchmaking system drew considerable criticism from players. Reddit threads were filled with complaints about uneven skill levels in matches, with players consistently facing highly skilled opponents while their teammates lacked comparable experience. One player commented, "I get harder games with better enemies, but never equally skilled teammates." Another echoed this sentiment, noting the disparity between experienced players and those seemingly new to the game.

(c) r/DeadlockTheGame

Responding to player feedback, a Deadlock developer announced a complete rewrite of the matchmaking system on the game's Discord server. Dunn's use of ChatGPT proved instrumental in finding a suitable algorithm. He stated, "A few days ago we switched Deadlock's matchmaking hero selection to the Hungarian algorithm. I found it using ChatGPT." He's been openly praising ChatGPT's usefulness, even dedicating a Chrome tab to it and sharing his "ChatGPT wins" on Twitter, highlighting its power and surprising many skeptics.

While acknowledging the benefits of using generative AI, Dunn also expressed some reservations. He noted the potential for it to replace human interaction, both in real life and in online communities. This sentiment resonated with some social media users who pointed out the skepticism surrounding AI potentially replacing programmers.

Algorithms are essential for sorting data based on specific parameters. In gaming, this means matching players based on skill or preferences. Dunn sought an algorithm where only one side (e.g., player A) has preferences, ensuring optimal matches in a bipartite (two-party) system. The Hungarian algorithm, as suggested by ChatGPT, appears to fulfill this requirement.

Despite the improvements, some players remain unhappy with Deadlock's matchmaking, attributing recent issues directly to the ChatGPT-assisted changes. Comments on Dunn's tweets ranged from expressing frustration to outright anger.

Here at Game8, we remain optimistic about Deadlock's potential. For a more detailed look at our playtest experience and thoughts on the game, check out the article linked below!