The first DLC for Arma Reforger doesn't add weapons, tanks, or new battlefields; instead, it brings rally racing into the military sandbox. The expansion pack offers three rally-tuned civilian cars with corresponding liveries, along with six tracks and a time trial mode where players can challenge the ghost cars left by their previous lap times.
Project lead Krzysztof Bielawski stated that the team needed to establish DLC technology for future titles using the Enfusion engine. Therefore, they initially sought content that wouldn't significantly disrupt core gameplay while integrating naturally into the main Conflict mode. After evaluating the feasibility of various proposals and their potential value to the sandbox, the team ultimately chose rally racing.
This direction also echoes the go-kart DLC for Arma 3, which originally started as an April Fool's joke. The team initially considered announcing the rally content in a similar manner. Developers aimed to recreate the feel of classic rally games and set the driving difficulty higher than typical arcade racers to better align with the series' style.
The rally DLC also serves as a showcase for vehicle system overhauls. The free 1.9 update released alongside it nearly completely reworked vehicle simulation from the ground up. Developers acknowledged mixed reviews for the new model but considered the overhaul essential, as the old vehicle experience had been a pain point since the game's launch. Arma Reforger functions not only as a standalone FPS but also as an experimental bridge connecting Arma 3 with the planned Arma 4, scheduled for release in 2027.