Choose Grey Goo
Choose Grey Goo if you want the Multi-player, Steam Leaderboards, and Valve Anti-Cheat enabled side of the pairing. 1,887 Steam reviews back the pick.
Grey Goo vs Terrorformer TD
Grey Goo and Terrorformer TD 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. Grey Goo (2015) is 9 years older than Terrorformer TD (2024). Terrorformer TD is currently ~60% cheaper on Steam than Grey Goo (11.99 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.
Which should you pick?
Choose Terrorformer TD
Choose Terrorformer TD if it's currently about 60% cheaper on the Steam Store. Terrorformer TD launched in 2024.
Both Grey Goo and Terrorformer TD sit in Strategy on Steam, so either pick lands in the same broad neighborhood. Use the side-by-side table for the feature view, or follow the "Games like" links below to see ranked alternatives for either title.
Side-by-side comparison
 Grey Goo |  Terrorformer TD | |
|---|---|---|
| Released | 2015 | 2024 |
| Genres | Strategy | Strategy |
| Platforms | Windows | Windows, macOS, Linux |
| Steam Deck | Deck Playable | Deck Playable |
| Price | 29.99 USD | 11.99 USD |
| Steam reviews | 68.7% positive (1,887 reviews) | 9 reviews |
| Multiplayer | Multi-player | Single-player only |
| Developers | Petroglyph, Six Foot | onewinter games |
Side by side
- Both are Strategy games on Steam.
- Grey Goo (2015) is 9 years older than Terrorformer TD (2024).
- Terrorformer TD is currently ~60% cheaper on Steam than Grey Goo (11.99 USD vs. 29.99 USD).
- Both are Deck Playable.
Grey Goo vs Terrorformer TD — FAQ
- Should I play Grey Goo or Terrorformer TD first?
- If you want chronology, Grey Goo (2015) came out before Terrorformer TD (2024). 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 Grey Goo and Terrorformer TD 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 Terrorformer TD have multiplayer like Grey Goo?
- No. Grey Goo supports multiplayer on Steam (Multi-player), while Terrorformer TD is listed as single-player only.