IMHO.

Free games like Conquest: Frontier Wars

Below are 8 free-to-play Steam games similar to Conquest: Frontier Wars, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.

Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Conquest: Frontier Wars page.

Ranked picks

  1. 1
    Crusader Kings II — Steam game cover

    Crusader Kings II

    Free-to-play alternative to Conquest: Frontier Wars — no purchase or trial window. Shares Strategy with Conquest: Frontier Wars.

    Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy.

    2012StrategySimulationRPGFreeDeck PlayableFree to playSimilar games →
  2. 2
    Minion Masters — Steam game cover

    Minion Masters

    Free-to-play alternative to Conquest: Frontier Wars — no purchase or trial window. Shares Strategy with Conquest: Frontier Wars.

    An addictive fast-paced hybrid of Card games & Tower-Defense. Play 1v1 - or bring a friend for 2v2 - and engage in epic online multiplayer battles full of innovative strategy and awesome plays! Collect 200+ cards with unique mechanics, all free!

    2019ActionStrategyIndieFreeFree to playSimilar games →
  3. 3
    Age of Empires III: Definitive Edition — Steam game cover

    Age of Empires III: Definitive Edition

    Free-to-play alternative to Conquest: Frontier Wars — no purchase or trial window. Shares Strategy with Conquest: Frontier Wars.

    Age of Empires III: Definitive Edition offers players a trial of this historical single & multiplayer RTS experience. *Note: To unlock all features of the game please see the “Base Game” product.

    2020StrategyFree To PlayFreeDeck PlayableFree to playSimilar games →
  4. 4
    Cell to Singularity - Evolution Never Ends — Steam game cover

    Cell to Singularity - Evolution Never Ends

    Free-to-play alternative to Conquest: Frontier Wars — no purchase or trial window.

    The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.

    2021SimulationFree To PlayCasualFreeDeck PlayableFree to playSimilar games →
  5. 5
    Moonbase Alpha — Steam game cover

    Moonbase Alpha

    Free-to-play alternative to Conquest: Frontier Wars — no purchase or trial window. Shares Strategy with Conquest: Frontier Wars.

    NASA has once again landed on the lunar surface with the goal of colonization, research, and further exploration. Shortly after the return to the Moon, NASA has established a small outpost on the south pole of the moon called Moonbase Alpha.

    2010StrategyAdventureSimulationFreeDeck PlayableFree to playSimilar games →
  6. 6
    War Selection — Steam game cover

    War Selection

    Free-to-play alternative to Conquest: Frontier Wars — no purchase or trial window. Shares Strategy with Conquest: Frontier Wars.

    War Selection is a compelling RTS game featuring base building, resource extraction and warfare. Evolve from a stone age tribe to a distinct industrial nation with unique game mechanics and battle for supremacy with dozens of players on a unique procedurally generated map.

    2019StrategyIndieMassively MultiplayerFreeDeck PlayableFree to playSimilar games →
  7. 7
    AirMech — Steam game cover

    AirMech

    Free-to-play alternative to Conquest: Frontier Wars — no purchase or trial window. Shares Strategy with Conquest: Frontier Wars.

    AirMech® Strike is a fast paced Action-RTS game that can be played solo, coop, or competitively online. Earn Kudos and Experience in battle and unlock a wide collection of AirMechs and Units while you practice the perfect strategy to emerge victorious!

    2018ActionStrategyIndieFreeFree to playSimilar games →
  8. 8
    Zero-K — Steam game cover

    Zero-K

    Free-to-play alternative to Conquest: Frontier Wars — no purchase or trial window. Shares Strategy with Conquest: Frontier Wars.

    With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps.

    2018StrategyIndieSimulationFreeFree to playSimilar games →