Tretrais

Tretrais is a survival game set on Mars. After your ship fails during a routine transit a few hours past Mars, you escape in a pod that locks onto the planet. Once you land, you must defend yourself against creatures that keep attacking while scavenging for parts and exploring the map for clues about Mars and its inhabitants.

Survive the attacks

Enemies arrive continuously rather than on a set schedule. Each wave hits harder, comes faster and introduces new threats, including leaping creatures, explosive organisms, long-range attackers and heavily armored enemies. Each type demands a different response, and the attacks grow more intense the longer you hold out.

Build your defenses

You can slow enemies with spike traps and mud pits, use explosives and explosive mines against them, and surround your base with auto-firing turrets. Where you place each defense matters as you try to hold the perimeter.

Explore Mars

As you scavenge for parts and push deeper into the map, you uncover secrets buried beneath Mars's surface. Discoveries raise questions about the planet and its creatures, while your time to find answers is running out.