Main Faction Units

Each main faction in ZeroSpace ships a full RTS roster: workers, core infantry, specialized elites, vehicles, air transitions, and late-game siege. Units inherit faction identity—Protectorate versatility, Grell swarm, Xol fusion hybrids, Legion armor—while sharing baseline counters like anti-air and detection needs. Learn one roster deeply before spreading across factions; production hotkeys differ enough to cause supply blocks if you swap without practice.

Unit stats and patch notes live on individual Protectorate, Grell, Xol, and Legion pages. This guide summarizes role archetypes so scouts know what production buildings imply. Pair scouting intel with hero abilities and mercenary slots for complete army reads.

Skirmish and Galactic War use the same unit lines—mechanics from how to play and control towers apply universally.

Protectorate units emphasize flexible infantry, disciplined mechs, and reliable anti-air transitions. Expect balanced mid-game power with fewer extreme weaknesses—ideal for learners. Protectorate armies win sustained tower fights when paired with Grace hero spikes or Marran mercenary tanks. Counter Protectorate by denying mid-game expansions before their versatile comp completes.

Grell units skew toward quantity, biomass-enhanced swarms, and map presence through creep-friendly structures. Grell sacrifices individual unit durability for overwhelming numbers and regeneration synergies with Weaver hero support. Deny Grell towers early or match AoE damage—Void Mage mercenaries and Legion splash tools excel. Grell players should read skirmish map notes for layouts with expandable side lanes.

Both factions appear frequently in Galactic War tier lists: Protectorate for stable Season Zero picks, Grell for coordinated alliance rushes.

Xol units revolve around fusion upgrades—hybrid forms that reward sequential tech and tight micro. Underinvested fusion paths underperform vanilla units from other factions, so Xol demands scouting and commitment. Experienced RTS players enjoy Xol flexibility once tech branches are mastered. Counter Xol by interrupting fusion timing windows and punishing supply-heavy research with harassment.

Legion fields heavy armor, sacrificial power structures, and slow but unstoppable siege lines. Legion early economy is vulnerable—fast mercenary raiders and Valkaru shock troops exploit slow openings. Late-game Legion breaks towers and ice chokes featured in Frozen Watch guides. Pair Legion with Grinder hero siege support and defensive mercs for holistic comp.

Check PvP meta builds for unit-specific counters after each balance pass.

Scout production buildings, not just units—ZeroSpace telegraphs air, siege, and fusion transitions through structure counts. Relay intel to Galactic War allies before accepting sector RTS matches. Build mixed armies: every comp needs anti-air, detection, and a plan for hero-focused dives.

Campaign missions introduce faction units gradually; use campaign walkthrough notes for mission-specific counters. Co-op doubles production pressure—communicate role splits so both players do not duplicate pure anti-air while lacking siege.

Plan compositions in the loadout builder, then validate against enemy factions seen in your MMR bracket. Units define the backbone; mercenaries and heroes supply the swing—together they form loadouts ranked on best loadouts pages.

When learning a new faction, drill one unit counter triangle per session—anti-air, anti-armor, and detection—before adding advanced hybrid transitions. That discipline prevents panic production during tower fights.

Each faction telegraphs intent through production buildings: air structures, fusion cores, biomass pools, and Legion power relays each imply a timing attack window. Spend one skirmish match per faction purely scouting—do not attack until you identify which tell appeared first. Note the game time in replays and compare to PvP meta timings.

Reaction drills: when you see enemy air production, queue anti-air before re-maxing army; when you see siege, contest the nearest tower to deny setup ground; when you see stealth mercs, build detection before the third expansion. These habits transfer directly to Galactic War sectors where alliances share scout pings.

Pair drills with the how to play guide economy checklist so production reactions do not collapse your worker count.