Sentry System
Short description
Sentry System is a tower defense roguelike where you collect, modify and upgrade your sentries while progressing through a network of challenging encounters.
- Developer
- Penguinium
- Publisher
- Penguinium
- Release
- Fri, Jun 07, 2024
- Price
- $7.99
- Reviews
- 5
- Positive
- 60%
- Followers
- n/a
- Owners (estimated)
- 0 – 20K
- Concurrent players
- n/a
- Genres
- Indie, Strategy
- Tags
Review count and SteamSpy's owner range agree well enough to narrow the estimate down to this band. Multiplied by the $7.99 launch price — there is not enough price history for this game to weight the copies by what they actually sold for. Before Steam's cut, VAT and refunds. How these numbers are calculated.
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Media
History
Tracking started Aug 15, 2026. Charts appear once there is more than one data point — nothing has changed since.
Similar games that found an audience
Games sharing at least 3 of this title's leading tags, with enough reviews to have gone somewhere. Ranked by how much they overlap, not by how big they are. − missing and + extra mark the tags each one does not share with Sentry System. Studio counts the titles that developer has released — the closest thing to production scale that public data allows. It is not a budget, and nobody publishes those.
| Image | Name | Studio | Shared | Tag difference | Price | Reviews | Positive | Released | Revenue (estimated) |
|---|---|---|---|---|---|---|---|---|---|
|
Kingdom Rush - Tower Defense | Ironhide Game Studio 8 titles | 4 | − Rogue-like − Auto Battler + 2D + Fantasy | $9.99 | 16,868 | 97% | Mon, Jan 06, 2014 | $10m $10m – $13.5m |
|
Tower Dominion | Parallel 45 Games 2 titles | 4 | − Auto Battler − Singleplayer + Base-Building + RTS | $17.49 | 5,002 | 85% | Wed, May 07, 2025 | $3.9m $875k – $7m |
|
Crystal Guardians TD | Green Pine Studios 2 titles | 4 | − Auto Battler − Singleplayer + Rogue-lite + 3D | $13.99 | 115 | 89% | Fri, Mar 15, 2024 | $72k $32k – $129k |
|
Countless Army | Dos Estrellas 2 titles | 4 | − Rogue-like − Auto Battler + 2D + Fantasy | $9.99 | 98 | 71% | Thu, Jul 18, 2024 | $44k $20k – $78k |
|
Combo Card Clashers | Burnt Games LLC first game | 4 | − Tower Defense − Rogue-like + Roguelike Deckbuilder + Card Battler | $5.99 | 91 | 78% | Thu, May 16, 2024 | $25k $11k – $44k |
There are more like this. Your plan shows the 5 closest neighbours; Plus and Pro show up to 100 — enough to see the shape of a niche instead of a sample of it.