They Are Billions similar games & best alternatives

They Are Billions - Trailer
They Are Billions - they-are-billions_1.avif
They Are Billions - they-are-billions_2.avif
They Are Billions - they-are-billions_3.avif
They Are Billions - they-are-billions_4.avif
They Are Billions - they-are-billions_5.avif
They Are Billions - they-are-billions_6.avif

They Are Billions

PlayStation 4, Nintendo Switch 2, PC (Microsoft Windows), Xbox One • 2019

Should you play it?

They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?

What works

  • Challenging and rewarding gameplay
  • Unique blend of rts and survival
  • High replayability with randomized maps
  • Immersive steampunk zombie atmosphere
  • Pause feature allowing strategic planning

Things to keep in mind

  • No mid-mission save feature causing frustration
  • Steep learning curve and punishing difficulty
  • Limited campaign content and repetitive hero missions
  • Poor unit pathfinding and some ai quirks
  • Lack of multiplayer or social features

What to play next

Top picks

Games that feels the closest overall

  • Diplomacy is Not an Option: Shareware

  • Anomaly: Warzone Earth

  • Lost Eidolons: Veil of the Witch

  • Here Comes The Swarm

  • Infection Free Zone

  • Diplomacy is Not an Option

More expressive

Games that feels like They Are Billions but with more self-expression and customization

  • Fallen Enchantress: Legendary Heroes

  • Ash & Adam's Existential Treads

  • Bad 2 Bad: Apocalypse

  • Black Geyser: Couriers of Darkness

  • The Last Spell

  • Astral Throne

More relaxing

Games that feels like They Are Billions but with a more relaxing feel

  • Eador. Imperium

  • Heroes of Science and Fiction

  • Lessaria: Fantasy Kingdom Sim

  • Undead Horde

  • The Last Flame: Prologue

  • Becastled

Less leadership-focused

Games that feels like They Are Billions but with less leadership over others

  • Tower Factory

  • Tiny Tactics

  • Brigador: Up-Armored Edition

  • Doomsday Hunters

  • Touhou Monster TD ~ 幻想乡妖怪塔防

  • MarZ: Tactical Base Defense

Choose your own criteria ->

Similarity map

How to use the graph

Similarity map

Each dot is a game placed from its motivation profile relative to this page’s game. Direction shows which motivation differs most; distance along that axis shows how large the gap is.

  • Purple star: this page’s game at the centre — everything is relative to it.
  • Direction: each axis is a main motivational difference vs this game (e.g. more / less competitive).
  • Distance on an axis: how large that difference is (ring scales show +/− points).
  • Coloured chips: click to highlight games that mainly differ on that motivation; click again to reset.
  • Dotted line: link between this page’s game and the one selected for comparison.
  • Hover a dot to preview that game in the panel on the right; click to keep that comparison.
  • Scroll or double-click the chart to zoom.

How to read the map This is a polar difference map: direction = which motivation differs, and distance = how much (same units as the sidebar deltas).

They Are Billions: Broadly representative of its motivational profile, with a few distinct shifts. Motivations that often define this kind of title include Violence, Survival, Fellowship, Intimacy. Here, the score leans higher than usual among comparable games on Leadership. It leans lower than usual among comparable games on Relaxation, Expression.

Last update: 03/08/2026