Where to find the locked door for the Maintenance Pump key in Marathon and how to get the key if you've found the door first.

Lockbox Keys in Marathon unlock special loot rooms marked by red flares. Here’s how to get them and where to use them.

Do you need help finding the door that requires the Tunnels Office Key in Marathon? This guide has you covered.

As you explore Tau Ceti IV in Marathon, you’ll undoubtedly see rooms filled with bright yellow toxic gases - the Tox Clear ...

There are two ways to get Lockbox Keys in Marathon. You can either: Between these two methods, you’ll likely find more Lockbox Keys than you can buy. Not only is the upgrade 2,500 Credits, but the ...