Top Alternatives to Cube 2: Sauerbraten

Counter-Strike is a globally recognized series of multiplayer first-person shooter games. Players engage in strategic team-based combat, with either terrorist or counter-terrorist objectives like bomb defusal or hostage rescue. Known for its competitive esports scene and precise gameplay.

Unreal Tournament is a classic arena first-person shooter series emphasizing fast-paced multiplayer combat. Known for its intense gameplay, diverse weaponry, and iconic maps, it offers a pure and adrenaline-fueled gaming experience in both online and offline modes.

Quake is a landmark series of fast-paced, first-person shooter video games known for its pioneering 3D graphics, intense multiplayer deathmatch, and distinctive dark sci-fi/fantasy blend. It emphasizes speed, skill, and movement.

Xonotic is a fast-paced, arena-style first-person shooter with a focus on pure competitive gameplay. It is free, open-source, and offers both single-player and robust multiplayer modes with a variety of weapons and game types.

Call of Duty is a long-running, highly successful first-person shooter video game franchise known for its intense multiplayer action, cinematic single-player campaigns, and diverse settings ranging from historical conflicts to futuristic warfare.

OpenArena is a free and open-source standalone 3D first-person shooter game. It is a community-developed clone of Quake III Arena, offering fast-paced multiplayer and single-player combat with a variety of weapons and game modes.

Red Eclipse is a fast-paced, free and open-source arena first-person shooter built on the Cube Engine 2. It emphasizes parkour-style movement and mutiplayer action across various game modes, offering a refreshing take on the genre with a sci-fi aesthetic.

AssaultCube is a free, fast-paced, first-person shooter game built on the Cube engine. It offers both online multiplayer and single-player modes, emphasizing tactical gameplay and high performance on various hardware.

Warsow is a fast-paced, open-source arena first-person shooter designed for competitive play. It emphasizes movement, aiming, and strategic gameplay in futuristic environments.

Tremulous is a unique free and open source team-based first-person shooter that seamlessly blends FPS action with real-time strategy elements. Players join one of two opposing teams, Humans or Aliens, each with distinct capabilities and objectives, engaging in fast-paced combat while managing resources and building structures to gain an advantage.

Alien Arena is a fast-paced, free-to-play deathmatch style first-person shooter set in a futuristic, science-fiction universe. It emphasizes classic arena combat with a variety of weapons, maps, and game modes, offering both online multiplayer and single-player bot matches for intense action.

TrueCombat: Elite & CQB is a free and open-source tactical first-person shooter mod for the game Enemy Territory, emphasizing realistic combat simulation and intense team-based gameplay in modern-day scenarios.

AU Modern FPS is a free-to-play, browser-based first-person shooter game developed with Unity3D, offering fast-paced multiplayer action directly in your web browser.