Killing Floor
Short description
6-player co-op survival horror at its finest! Free updates, free special events and a ridiculous amount of fun!
- Developer
- Tripwire Interactive
- Publisher
- Tripwire Interactive
- Release
- Thu, May 14, 2009
- Price
- $19.99
- Reviews
- 39,885
- Positive
- 96%
- Followers
- n/a
- Owners (estimated)
- 2M – 5M
- Concurrent players
- 224
- Genres
- Action
- Features
- Multi-player, Co-op, Cross-Platform Multiplayer, Steam Trading Cards, Steam Workshop, Valve Anti-Cheat enabled, Stats, Includes level editor
- Tags
Review count and SteamSpy's owner range agree well enough to narrow the estimate down to this band. Multiplied by the $19.99 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
68 data points since Jul 30, 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.
The blurred area is the rest of the history. 387 further data points reach back to Oct 1, 2010 — your plan shows the last 90 days of it. How far each series in particular reaches is written on its own chart; not every one of them goes back that far. The shape in the blurred area is decoration, not data: the figures are not in this page at all. Plus unlocks the complete series.
Lowest recorded price: $1.99 on May 16, 2024.
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 Killing Floor. 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) |
|---|---|---|---|---|---|---|---|---|---|
|
Left 4 Dead | Valve 34 titles | 5 | − Survival + Action | $9.99 | 58,567 | 96% | Mon, Nov 17, 2008 | $26.3m $11.7m – $99.9m |
|
No More Room in Hell | No More Room in Hell Team first game | 5 | − FPS + Free to Play | Free | 699 | 84% | Thu, Oct 31, 2013 | n/a |
|
Left 4 Dead 2 | Valve 34 titles | 4 | − Survival − Horror + Shooter + Online Co-Op | $9.99 | 822,392 | 98% | Mon, Nov 16, 2009 | $437m $437m – $575m |
|
Dead by Daylight | Behaviour Interactive Inc. 18 titles | 4 | − FPS − Zombies + Survival Horror + Online Co-Op | $7.99 60% |
689,270 | 78% | Tue, Jun 14, 2016 | $536m $346m – $864m |
|
Dying Light 2 Stay Human: Reloaded Edition | Techland 13 titles | 4 | − FPS − Survival + Open World + Parkour | $59.99 | 165,897 | 79% | Thu, Feb 03, 2022 | $448m $300m – $600m |
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.