Marathon will feature six factions at launch, but only one will be available by default.
While we will all begin with the CyberAcme faction, the options will expand rapidly once a fair bit of the early game content is cleared. Let’s look at all six factions and how to unlock them.
Disclaimer: For Server Slam, Sekiguchi can’t be unlocked. You’ll need to wait until the full launch to unlock it as the sixth faction.
How to unlock all factions in Marathon
The table below has information about how you can unlock all six factions inside the game. Unlocking some of them is relatively easy, while a few might truly challenge your mechanical skills.
| Faction | How to unlock |
|---|---|
| CyberAcme | Unlocked by default. To proceed further and unlock the other factions, you’ll have to complete Welcome to Tau Ceti 1 and Welcome to Tau Ceti 2. |
| NuCaloric | Find NuCal Employee ID in a building east of Overflow Download employee data from the workstation nearby |
| Traxus | Hack terminal at Intersection, Complex, or Bio-Research Acquire Shipping Manifest from UESC Commander Scan the nearby stacked shipping container before it is picked up |
| Mida | Defeat 15 UESC across Tau Ceti IV Smash 20 glass across Tau Ceti IV |
| Arachne | Deal 60 damage to enemy Runners Down an enemy runner |
| Sekiguchi | Inject the Necrotic Sample in Southern Flight Control Scan your shell in a southeastern Orientation |
Once you unlock more factions, you’ll get more upgrade options and armory purchases available to you before starting a new run.
How to rank up factions in Marathon
Unlocking factions is just one side of the coin. You must rank up all the factions as quickly as possible. To do so, you’ll need to undertake contracts. You can only have one contract active at a time (this could change later after an update).

Once you undertake and complete contracts, you gain a currency called Rep. Rep is exclusive to different factions. You can also gain bonus Rep from team contracts once they’ve been completed successfully. This is an excellent way to rank up factions quicker.
That’s pretty much all when it comes to ranking up factions. Some contracts tend to pay more Rep, but they can be significantly more challenging to complete.