Choose Idle Monster TD
Choose Idle Monster TD if you want a Free To Play experience. On Steam, it's free to play, so the barrier to trying it is zero. Idle Monster TD launched in 2021.
Idle Monster TD vs air star
Idle Monster TD and air star both land in Strategy, Indie, Casual 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, Indie, Casual on Steam. Idle Monster TD (2021) is 2 years older than air star (2023). air star scores higher on Steam reviews (89.5% positive) than Idle Monster TD (69.6% positive). 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 air star
Choose air star if it matches what drew you to this matchup. air star launched in 2023.
Both Idle Monster TD and air star sit in Strategy, Indie, and Casual 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
 Idle Monster TD |  air star | |
|---|---|---|
| Released | 2021 | 2023 |
| Genres | Strategy, Indie, Free To Play, Casual | Strategy, Indie, Casual |
| Platforms | Windows, macOS | Windows, macOS, Linux |
| Steam Deck | Deck Playable | Deck Playable |
| Price | Free to play | 4.99 USD |
| Steam reviews | 69.6% positive (553 reviews) | 89.5% positive (19 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Swell Games LLC | DogmaQuest, Brendan Roarty |
Side by side
- Both share Strategy, Indie, Casual on Steam.
- Idle Monster TD (2021) is 2 years older than air star (2023).
- air star scores higher on Steam reviews (89.5% positive) than Idle Monster TD (69.6% positive).
- Idle Monster TD is free; air star is paid (4.99 USD).
- Both are Deck Playable.
Idle Monster TD vs air star — FAQ
- Should I play Idle Monster TD or air star first?
- If you want chronology, Idle Monster TD (2021) came out before air star (2023). 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 Idle Monster TD and air star similar?
- They overlap on Strategy, Indie, Casual 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.
- Is Idle Monster TD free?
- Yes — Idle Monster TD is a free-to-play Steam title. air star is paid (4.99 USD).