Crystal Keepers
Short description
Face hordes in intense battles, unlock abilities, and combine items to create unique builds. Play solo or with up to 3 friends, discover powerful synergies, and survive the insane waves. Evolve your strategy, defeat bosses, and become a true Guardian of the Crystals!
- Developer
- Polycon
- Publisher
- Polycon
- Release
- Thu, May 22, 2025
- Price
- $4.99
- Reviews
- 8
- Positive
- 75%
- Followers
- 41
- Owners (estimated)
- 0 – 20K
- Concurrent players
- n/a
- Genres
- Action, Casual, Indie, RPG, Strategy, Early Access
- Features
- Multi-player, Co-op, Online Co-op
- Tags
Review count and SteamSpy's owner range agree well enough to narrow the estimate down to this band. Multiplied by the $4.99 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.
Waiting for Crystal Keepers to get cheaper? Name your price and we will email you when it gets there.
Media
History
2 data points since Jul 31, 2026. Gaps mean nothing changed — the value carries forward.
The revenue curve is an estimate, not a measurement. It is the only calculated series here: each interval takes the review growth of that period, multiplies it by the sales-per-review factor and by the price actually charged at the time, and adds the result to the running total. That is why it climbs more slowly through discount periods than the review curve next to it. The last point is the same figure quoted above — gross, before Steam's cut, VAT and refunds. How these numbers are calculated.
Lowest recorded price: $4.99 on Jul 31, 2026. That is the current price.
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 Crystal Keepers. 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) |
|---|---|---|---|---|---|---|---|---|---|
|
Soulstone Survivors | Game Smithing Limited 3 titles | 4 | − Isometric − Co-op + Action RPG + Rogue-like | $10.49 30% |
25,834 | 91% | Tue, Jun 17, 2025 | $11.6m $6m – $11.6m |
|
The Spell Brigade | Bolt Blaster Games 2 titles | 4 | − Early Access − Isometric + Online Co-Op + Magic | $12.99 | 14,950 | 81% | Wed, Apr 29, 2026 | $5m $3m – $5m |
|
Yet Another Zombie Survivors | Awesome Games Studio 7 titles | 4 | − Isometric − Co-op + Indie + Arcade | $14.99 | 14,600 | 91% | Thu, Aug 20, 2026 | $7.3m $5.5m – $11.1m |
|
Nordic Ashes: Survivors of Ragnarok | Noxfall Studios 3 titles | 4 | − Isometric − Co-op + Arena Shooter + Top-Down Shooter | $9.99 | 6,159 | 88% | Fri, Apr 26, 2024 | $1.8m $1.3m – $3.2m |
|
SWORN | Windwalk Games first game | 4 | − Bullet Hell − Isometric + Indie + Hack and Slash | $8.49 66% best price ever |
3,682 | 80% | Tue, Sep 23, 2025 | $3.4m $411k – $6m |
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.