Alien Swarm: Reactive Drop is a tactical shooter. The camera is located on top. The project is cooperative oriented. Multiplayer supports up to 8 users. There is PvP and PvE content. There is also a single where they let you play on all available maps with bots.
This is an improved version of AS. Alien Swarm: Reactive Drop differs from the original in the presence of additional modes, support for mods, redesigned artificial intelligence. There are new campaigns, types of weapons and varieties of opponents. Also, the creators brought a system of achievements and a leaderboard. Team size has increased from four to eight soldiers. The arsenal was replenished with a combat rifle, a Desert Eagle pistol, a Ravager and gas grenades.
You have to fight with aliens on a secret planet. Various alien creatures were brought there for experiments. One day they got out of control and took over everything there. Deal with the problem sent an elite squad "Snoop". It is his fighters that are controlled by users. There are 4 classes available: medic, engineer, sniper and attack aircraft. Users can watch someone else's passage through an improved spectator mode. For those who like to shoot live opponents rather than computer mobs, there are separate network fun. These included regular and team deathmatch, "Arms Race" and "Instant Kill".