Ashes of the Singularity II Factions Guide
How UEF, PHC and Substrate actually differ in Ashes of the Singularity II: rosters, economy, defense, air and which faction to pick first.
The three factions in Ashes of the Singularity II share the same resource economy and the same win conditions. What changes is the unit roster, the production buildings and the way each faction prefers to trade. This guide covers the practical differences rather than the lore.
The official faction reveals describe UEF as the human coalition that wins through numbers and logistics, PHC as the post-human quality faction, and Substrate as Haalee's shielded machine civilization. The unit data supports that split.

This guide reflects the November 10, 2026 launch build. Re-check key numbers after each patch.
UEF: numbers, discipline, heavy chassis
The United Earth Forces have 18 trainable units and the most conventional structure. Rifle Squad costs 30 Durantium and 15 seconds, which makes UEF the fastest faction to put bodies on the map. Missile Squad, Cavalier Team and Reaver fill out the cheap core.
The payoff comes later. Titan M-7 is a 7,500 HP heavy with three weapons, including an anti-air gun. Goliath and Godslayer are the super units, and both are unlocked through the Assault or Containment research lines. UEF also has the widest air roster: Hammer Su-75, Phoenix B-32, Thunderbolt F-47s and the Wraith scout.
UEF strengths:
- Cheapest infantry in the game.
- Titan is the most flexible heavy unit.
- Strong artillery in Stormbreaker.
- Deep research tree with clear upgrades.
UEF weaknesses:
- Vehicles are efficient but not dominant.
- Super units arrive late.
- Requires more production buildings to keep up.
UEF is the recommended first faction. It teaches the economy, the region system and the value of anti-air without asking you to manage a fragile high-value army.
PHC: quality over quantity
The Post-Human Coalition has 20 units and the highest average cost. Brute is 125 Durantium, Hermes 150, and the line only gets more expensive from there. In exchange, PHC gets self-repair, strong commanders and the two Omega Arsenal super units.
The commander chassis is the faction identity. Initiate is a 3,500 HP, 90 DPS unit for a single logistics point. Aspirant is 6,000 HP and 120 DPS. Champion is 7,500 HP and 300 DPS. Hyperion and Sovereign are 50,000 HP monsters that cost 10 and 8 logistics respectively.
PHC strengths:
- Best high-value units per logistics point.
- Self-repair rewards good micro.
- Champion is the strongest mid-game unit.
- Apollo has the longest anti-air range.
PHC weaknesses:
- Expensive units punish bad engagements.
- Losing a veteran commander wastes the upgrade investment.
- Slow to recover from a bad fight.
PHC is the faction for players who like small, precise armies. It is less forgiving than UEF because every loss is a larger fraction of your army.
Substrate: shields and short trades
The Substrate roster is the smallest at 17 units, but it has the most distinctive mechanic: regenerating shields. A Substrate unit's displayed HP often includes a separate shield pool, and that shield comes back after disengaging.
Hatchling is the cheapest unit in the game at 50 Durantium. Eradicator is the best cheap line vehicle at 68 DPS and 1,400 range. Reaper is a 4,800 HP brawler that costs no Elerite. Punisher is the best-value aircraft at 120 DPS and 1,800 range.
Substrate strengths:
- Shields reward hit-and-run.
- Eradicator outranges Nemesis.
- Reaper costs no Elerite.
- Eye of Darkness has the highest HP in the game.
Substrate weaknesses:
- Smallest roster, fewer answers.
- Shields are vulnerable to burst damage.
- Air roster is thin.
- Super units need research ring 3.
Substrate is the faction for players who already understand engagement timing. Its units are not worse, but they ask you to leave fights earlier than the other two factions.
The shared economy
All three factions use Durantium and Elerite, with Quanta as the research currency. Extractors are built on resource nodes, and Refineries multiply the output of a region. Regions also provide Power, which limits how many buildings you can place in a single region, and Logistics, which caps your army size.
That shared structure is why faction choice matters less than economy management in the first ten minutes. A UEF player who takes four regions before the first fight will beat a PHC player who stayed on two, regardless of unit quality.
Which faction should you pick?
- Pick UEF if you are new, or if you like artillery and heavy tanks.
- Pick PHC if you like small armies, commanders and high-value trades.
- Pick Substrate if you like mobility, shields and forcing short fights.
In multiplayer, all three are viable at launch. The community reports a PHC-favored late game because Champion and Hyperion scale so well, but UEF's cheaper early units and Substrate's map mobility both have clear windows.
Campaign and skirmish
The 10-mission campaign is played from the UEF perspective, so it is the natural place to learn that faction. Instant Action lets you pick any faction, set the AI difficulty from Trainee to General and choose a map. If you want to learn PHC or Substrate without ladder pressure, play Instant Action against the AI before taking it online.
For the next step, read Ashes of the Singularity II UEF Units and Stats→.
FAQ
Which faction is easiest for beginners? UEF. Its cheap infantry, flexible Titan and clear research tree make it the most forgiving faction.
Is Substrate weaker because it has fewer units? No. The roster is smaller but efficient. Eradicator and Punisher are among the best value units in the game.
Do factions share units? No. Each faction has its own roster and production buildings. The three Recruit units are neutral and require capturing a Nano Fabricator.
Sources
Official source: Ashes of the Singularity II on Steam ↗
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