Polygons Tower Defense vs Invaders Tower Defense Online
Polygons Tower Defense and Invaders Tower Defense Online both land in Strategy, Early Access 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 share Strategy, Early Access on Steam. Polygons Tower Defense (2023) is 1 year older than Invaders Tower Defense Online (2024). Invaders Tower Defense Online is currently ~50% cheaper on Steam than Polygons Tower Defense (1.49 USD vs. 2.99 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
 Polygons Tower Defense |  Invaders Tower Defense Online | |
|---|---|---|
| Released | 2023 | 2024 |
| Genres | Action, Strategy, Casual, Early Access | Strategy, Indie, Early Access |
| Platforms | Windows | Windows, Linux |
| Steam Deck | Unrated | Unrated |
| Price | 2.99 USD | 1.49 USD |
| Steam reviews | 5 reviews | 3 reviews |
| Multiplayer | Multi-player, Online Co-op, Co-op | Multi-player, Online Co-op, Co-op |
| Developers | Rodrigo Neiva Santiago | Sagui Games |
Side by side
- Both share Strategy, Early Access on Steam.
- Polygons Tower Defense (2023) is 1 year older than Invaders Tower Defense Online (2024).
- Invaders Tower Defense Online is currently ~50% cheaper on Steam than Polygons Tower Defense (1.49 USD vs. 2.99 USD).
- Both support cooperative play.
Polygons Tower Defense vs Invaders Tower Defense Online — FAQ
- Should I play Polygons Tower Defense or Invaders Tower Defense Online first?
- If you want chronology, Polygons Tower Defense (2023) came out before Invaders Tower Defense Online (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 Polygons Tower Defense and Invaders Tower Defense Online similar?
- They overlap on Strategy, Early Access 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.
- Do both Polygons Tower Defense and Invaders Tower Defense Online have co-op?
- Yes — both list a co-op category on Steam. Specifics differ: Polygons Tower Defense ships Online Co-op, Co-op; Invaders Tower Defense Online ships Online Co-op, Co-op.