Fortnite uses an algorithm to match players of similar skill levels against each other rather than grouping players randomly. To fill out lower-skill matches, the game also adds AI-controlled bot players that are designed to behave like real players. Both systems have been active since 2019 and remain among the game's most debated features.

Skill-based matchmaking (SBMM) was introduced in Fortnite's v10.40 update in September 2019. The system evaluates multiple performance signals — including kill/death ratios, win rates, and build speed — to group players of comparable ability. AI bots were added with Chapter 2 Season 1 in October 2019, designed to populate lower-skill lobbies and give newer players achievable goals as they improve. Higher-skill players encounter fewer bots, while beginners may face mostly AI opponents. Neither SBMM nor bots appear in ranked/competitive playlists. The system's mechanics are not publicly disclosed beyond Epic's broad descriptions. The December 2024 addition of SBMM to the Fortnite OG limited-time mode drew significant player criticism. The exact algorithms used to evaluate skill and assign matches remain confidential.