Choose Space Defense
Choose Space Defense if you want a Casual experience. On Steam, it's currently about 50% cheaper on the Steam Store. Space Defense launched in 2020.
Space Defense vs Antithesis
Space Defense and Antithesis both land in Action, Indie 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 Action, Indie on Steam. Space Defense (2020) is 1 year older than Antithesis (2021). Space Defense is currently ~50% cheaper on Steam than Antithesis (0.99 USD vs. 1.99 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 Antithesis
Choose Antithesis if it matches what drew you to this matchup. Antithesis launched in 2021.
Both Space Defense and Antithesis sit in Action and Indie 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
 Space Defense |  Antithesis | |
|---|---|---|
| Released | 2020 | 2021 |
| Genres | Action, Indie, Casual | Action, Indie |
| Platforms | Windows | Windows |
| Steam Deck | Unrated | Unrated |
| Price | 0.99 USD | 1.99 USD |
| Steam reviews | 1 reviews | 1 reviews |
| Multiplayer | Single-player only | Single-player only |
| Developers | Guilherme Uema | Maximiliaan Hendrikx |
Side by side
- Both share Action, Indie on Steam.
- Space Defense (2020) is 1 year older than Antithesis (2021).
- Space Defense is currently ~50% cheaper on Steam than Antithesis (0.99 USD vs. 1.99 USD).
Space Defense vs Antithesis — FAQ
- Should I play Space Defense or Antithesis first?
- If you want chronology, Space Defense (2020) came out before Antithesis (2021). 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 Space Defense and Antithesis similar?
- They overlap on Action, Indie 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.