Defend humanoids from alien invaders in this retro 80s-style arcade shooter. Experience fast-paced gameplay with classic mechanics, enhanced graphics, and engaging power-ups across hundreds of levels on three different planets.






245+ iOS apps & games curated and reviewed
Interstellar Guardian is the household name in defender arcade game, but it's far from the only option. We track 245+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.8★ (36) | No | No | Aug 2026 | ||
| 2 | $2.99 | 2.5★ (54) | No | No | Sep 2026 | ||
| 3 | Free | 4.6★ (27K) | Yes | Yes | Sep 2026 | ||
| 4 | Free | — | Yes | No | May 2026 | ||
| 5 | Free | 4.4★ (454) | No | Yes | Jul 2026 | ||
| 6 | Free | 4.7★ (16K) | Yes | No | Sep 2026 | ||
| 7 | Free | 4.6★ (20K) | No | Yes | Sep 2026 | ||
| 8 | Free | — | Yes | No | May 2026 |






Defend humanoids from alien invaders in this retro 80s-style arcade shooter. Experience fast-paced gameplay with classic mechanics, enhanced graphics, and engaging power-ups across hundreds of levels on three different planets.






Relive a classic arcade experience by defending astronauts from alien abduction and destroying enemy ships. Be careful not to harm the astronauts, as their safety is crucial to preventing planetary destruction and mutant alien transformations.






Engage in thrilling arcade-style space combat, defending the galaxy from alien invaders. Pilot customizable starships, upgrade weapons, and face challenging missions and bosses. Experience a blend of classic nostalgia and modern action with competitive multiplayer and leaderboards.