They Are Billions vs Kingdom vs Zombies
They Are Billions and Kingdom vs Zombies both land in Strategy on Steam, which is why they keep getting compared. The comparison below is built from each game's Steam metadata — release year, genres, categories, Steam Deck status, price, and review score — refreshed daily by imho.run's scraper. Headline differences: Both are Strategy games on Steam. They Are Billions (2019) is 1 year older than Kingdom vs Zombies (2020). Kingdom vs Zombies is currently ~93% cheaper on Steam than They Are Billions (1.99 USD vs. 29.99 USD). No login or purchase needed — scroll for the full table, the verdict FAQ, and links to ranked similar games for both titles.
Side-by-side comparison
 They Are Billions |  Kingdom vs Zombies | |
|---|---|---|
| Released | 2019 | 2020 |
| Genres | Strategy | Strategy, Indie, RPG |
| Platforms | Windows | Windows, macOS |
| Steam Deck | Deck Playable | Unrated |
| Price | 29.99 USD | 1.99 USD |
| Steam reviews | 80.2% positive (18,746 reviews) | 3 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Numantian Games | Adam Cs |
Side by side
- Both are Strategy games on Steam.
- They Are Billions (2019) is 1 year older than Kingdom vs Zombies (2020).
- Kingdom vs Zombies is currently ~93% cheaper on Steam than They Are Billions (1.99 USD vs. 29.99 USD).
- They Are Billions is Deck Playable on Steam Deck; Kingdom vs Zombies has no Deck rating yet.
They Are Billions vs Kingdom vs Zombies — FAQ
- Should I play They Are Billions or Kingdom vs Zombies first?
- If you want chronology, They Are Billions (2019) came out before Kingdom vs Zombies (2020). If neither is a sequel to the other, order doesn't really matter — start with whichever fits your current mood, since both share enough on Steam to make either a reasonable opener.
- Are They Are Billions and Kingdom vs Zombies similar?
- They overlap on Strategy on Steam, so the catalogue groups them together — but "similar" depends on the specific mechanics. Use the genre + category rows above to decide whether the overlap matches what drew you to the one you've already played.
- Does They Are Billions run on Steam Deck?
- Yes — They Are Billions is rated Deck Playable by Valve. Kingdom vs Zombies doesn't have a Deck rating yet, so its Deck behaviour is currently unverified.