Top similar games like ACT:

Sub Rosa is a multiplayer first-person shooter about tense deals, double-crosses, and the occasional high-speed car chase.

WWII Online is a massive, persistent free-to-play MMO FPS driven entirely by players. Fight as Army, Air, or Naval forces and earn Victory Points to access more units. One global server. No scripts. Real outcomes. No zones. Huge world (300,000 km²). ENLIST NOW!

One-armed robber is a chaotic first-person heist game that centers around a uniquely challenging premise. Players take the role of a determined robber equipped with only one arm, tasked with pulling off daring heists on banks, shops, and various establishments.

A Realistic First-Person, 6v6 Tactical Shooter. In an alternate universe where the Soviet Union never fell apart, it looks like the two modern superpowers are starting to get along. Behind the scenes however, the best operatives that NATO and the Warsaw Pact have to offer are going head to head.

Pick a class, choose your gun, and dive right in, Ballistic Overkill has no barrier between you and immediate run and gun action. Designed from the outset to be 'pick up and play', Ballistic Overkill is for you regardless of your level of FPS experience.

Take on the role of a hardened career criminal executing intense, dynamic heists in constant pursuit of the next “big score”

Operation: Harsh Doorstop is the ultimate, free to play, tactical shooter sandbox. Play singleplayer, multiplayer, or co-op modes and explore thousands of community-created maps, weapons, and vehicles via the Steam Workshop. Created by developers of the cancelled Project Reality 2 project.

Destroy, smash and blast your way to victory! Use advanced weapons and vehicles to dominate the battlefield.

Perfect Heist is a round-based online game, where the robber team tries to execute a bank robbery without getting noticed, and the cop team tries to prevent it. Robbers hide in plain sight and try to slowly infiltrate the bank while the Cops try to figure out who is a normal customer, and who is a robber!

Perfect Heist 2 is a round-based online game, where robbers try to hide in plain sight while robbing a bank without being noticed by the cop team!

MESS is a multiplayer first-person jailbreak game where strategy, deception, and survival collide in a prison environment. Experience yourself in a role of Warden to maintain order, or Prisoner to try to break free and escape the prison.

Kommando is an online competitive tactical shooter set in fictional but realistic locations from all across the globe. It features a competitive 5v5 FPS experience inspired by tactical shooters of the past and present.

With nothing left to lose, you apply for an office job—only to find they’re handing you guns instead of a desk. Lie, shoot, and deal your way out of dangerous situations in this chaotic, physics-based first-person shooter about corporations that believe profit is achievable by any means necessary.

Sneak, steal, get tased. A fast-paced asymmetrical PvP heist game where thieves steal loot and scramble for their escape while security hunts them down. Team up, outsmart your friends, and make your escape. Or make sure nobody does.

Fast-paced old-school military FPS with online PvP, offline PvE, intelligent AI bots, customizable soldiers, and diverse maps. Invite friends to private matches, customize weapons, perks, skins and loadouts, unlock gear, earn killstreaks, and keep one unified Steam Cloud progression.

Thievery: Online is an action-packed, 5v5 heist shooter that puts you in the shoes of expert thieves or highly-trained guards. Pull off epic heists, or foil expertly laid plans.

An intense FPV drone warfare simulator with online multiplayer and co-op modes. Take control of modern kamikaze drones in a high-adrenaline combat experience where precision, speed, and tactics decide your success. Play solo or team up with friends to destroy enemy tanks, vehicles, and bases.

Experience the thrill of classic arena shooters reborn. Vengeance delivers nonstop, skill-driven combat with fast respawns, chaotic maps, and authentic weapon recoil. Forget microtransactions—just pure, old-school shooting fun. Play fast. Play the past!

A casual team vs. team FPS about gunfights and negotiation. Your character is completely physically simulated and can interact with the world and be injured dynamically.

Have you ever dreamed of a game that blends base building, on foot fast paced action and air combat in spaceships ? Use a combination of raw skill and strategy to assert domination on the opposing teams in this epic multiplayer competitive game.

Shoot, blow sh!t up, fly or bark orders in the ultimate Free-to-Play, large scale, multiplayer, shooter experience. Thousands of players in multiple battles fighting one massive war of nations. The first to capture 15 cities takes the glory.

taCam is a tactical multiplayer FPS with a realistic bodycam perspective, fluid gunplay, and extensive weapon customization. Engage in intense combat across modes like Team Deathmatch and Skirmish, using teamwork and strategy to dominate the battlefield.

A fast-paced classic military FPS inspired by old-school online shooters. Battle in online PvP or PvE against intelligent AI bots. Unlock soldiers, weapons, perks, and attachments, earn XP, customize your loadouts, and enjoy full matches with no empty servers.

FRAG LIKE IT'S 1999! TOXIKK plays as if today's military shooters never existed: Designed as a spiritual successor to the FPS giants of the late 90s and early 2ks, TOXIKK carefully evolves their mechanics with modern technology and fresh ideas elaborated with Arena-FPS enthusiasts.

A fast-paced FPS where precision and movement decide every fight. Choose your weapons, master maps, and challenge other players and/or bots in casual or competitive matches.