Choose Sentinel
Choose Sentinel if you want an Indie experience. On Steam, it's free to play, so the barrier to trying it is zero. Sentinel launched in 2014.
Sentinel vs Rock 'N' Roll Defense
Sentinel and Rock 'N' Roll Defense 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. Sentinel (2014) is 2 years older than Rock 'N' Roll Defense (2016). Rock 'N' Roll Defense scores higher on Steam reviews (84.5% positive) than Sentinel (65.5% 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 Rock 'N' Roll Defense
Choose Rock 'N' Roll Defense if you want an Action, Adventure, and Casual experience. 1,008 Steam reviews back the pick.
Both Sentinel and Rock 'N' Roll Defense 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
 Sentinel |  Rock 'N' Roll Defense | |
|---|---|---|
| Released | 2014 | 2016 |
| Genres | Strategy, Indie | Action, Strategy, Adventure, Casual |
| Platforms | Windows, macOS, Linux | Windows |
| Steam Deck | Deck Verified | Deck Playable |
| Price | Free to play | 4.99 USD |
| Steam reviews | 65.5% positive (58 reviews) | 84.5% positive (1,008 reviews) |
| Multiplayer | Single-player only | Single-player only |
| Developers | Matthew Brown | NukGames |
Side by side
- Both are Strategy games on Steam.
- Sentinel (2014) is 2 years older than Rock 'N' Roll Defense (2016).
- Rock 'N' Roll Defense scores higher on Steam reviews (84.5% positive) than Sentinel (65.5% positive).
- Sentinel is free; Rock 'N' Roll Defense is paid (4.99 USD).
- Steam Deck: Sentinel is Deck Verified, Rock 'N' Roll Defense is Deck Playable.
Sentinel vs Rock 'N' Roll Defense — FAQ
- Should I play Sentinel or Rock 'N' Roll Defense first?
- If you want chronology, Sentinel (2014) came out before Rock 'N' Roll Defense (2016). 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 Sentinel and Rock 'N' Roll Defense 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.
- Is Sentinel free?
- Yes — Sentinel is a free-to-play Steam title. Rock 'N' Roll Defense is paid (4.99 USD).