Tremulous is a free and open source team-based first-person shooter with real-time strategy elements. Developed by Dark Legion Development
License: Open Source
Nexuiz Classic is a fast-paced first-person shooter with a focus on unique weapons and gameplay modes, while Tremulous combines first-person shooter elements with real-time strategy, featuring distinct human and alien factions. The former emphasizes quick action and customization, while the latter leans towards strategic gameplay with a blend of combat and resource management.