Alien Swarm vs Scourge Outbreak

Alien Swarm drops you and up to three friends into a hostile off‑world colony, forcing you to coordinate tactics and choose from four distinct marine classes. The free‑to‑play title blends intense shooter action with squad‑level strategy as you clear icy surfaces and lava‑filled mines of relentless alien threats. Beyond the core campaign, the game includes the full Source SDK code, offering developers access to a 3rd‑person camera, depth of field, dynamic shadows, and numerous gameplay enhancements for modding and custom content creation.

Blast your way through Nogari Island as Echo Squad, wielding a devastating arsenal and unique abilities to crush the Nogari Corporation’s secrets. The game offers a fully co‑op campaign for up to four players and a suite of eight‑player versus modes, set in a 2026 sci‑fi world ruled by a shadowy energy source called Ambrosia.

• Free to download and play
• Deep tactical squad mechanics
• Extensive modding support with full source code
• Varied environments and alien types

• Fully co‑op campaign for up to 4 players
• Eight varied versus modes
• Rich sci‑fi storyline and setting
• Available on PS3, Xbox 360, PC, and Mac

• Limited graphics compared to modern shooters
• Multiplayer may feel empty without a community
• Steep learning curve for class coordination

• Low critic score (45/100)
• Graphics show their 2013 age
• Occasional online connectivity issues