Headcrab Infection
A Roblox experience owned by BlazeProtocol.
HorrorENHalf-LifeBlack MesaSurvival Horror
Headcrab Infection is a Roblox experience created on 2020-11-03. The game currently has 87 players online and has accumulated 30,235,624 lifetime visits. It holds 195,494 favorites and maintains a 60% like percentage. The genre field is null. The experience features team-based gameplay inspired by the Half-Life series, with active development ongoing.
Description (written by the developer; not a statement by this register)
👋 Thanks for participating in the 2nd Overhaul Public Test! See you next public test! Fight with your enemies in the facility, complete your team goals or escape from the facility as a Survivor. Teams in this game were highly inspired from Half-Life series and Black Mesa. ⚠️ Still under active development! Report bugs/glitches and ask questions in our communication server's proper channels 🎮 Controls: - Xen teams use Space (headcrabs), R key, F key or mouse button click for their attacks or abilities. - Every ability is controlled with buttons on mobile devices - R1, R2, X (square) keys on controllers * For more detailed information about controls, please check the in-game tutorials ⭐ 1.5x EXP during weekends 📌 Credits to Black Mesa and Half-Life Alyx for some specific meshes and assets 📌 Credits to all the developers in the BlazeProtocol group
Last updated by the developer 3 Aug 2026, 18:09 UTC.
Live players over time
Growth
Growth history is still building. We hold one measurement for this entry. A trend needs at least two, taken days apart — so this will fill in on its own rather than being estimated. We do not publish numbers we have not measured.
| Measured (UTC) | Players | Change |
|---|---|---|
| 10 Aug 2026, 15:30 | 70 | first reading |
Concurrent players at each of our measurements (insert-on-change).
Monetization — game passes
Game passes for sale and their prices, measured from the Roblox passes API. Developer products bought inside the game aren’t publicly listable.
Badge funnel
How many players have ever earned each badge — a proxy for how far players get before they stop. Steep drop-offs mark where a game loses people. Win rate is the past-day share of players who earned it; categories are assigned by a language model from each badge’s own name and description.
Roblox recommends these alongside it
Roblox’s own “games like this” rail, as we recorded it on 5 September 2026. The order is Roblox’s, not ours. Which games it points at most →
Like ratio over time
Growth
| Measured (UTC) | % liked | Change |
|---|---|---|
| 2 Sept 2026, 15:37 | 60 | no change |
| 23 Aug 2026, 15:30 | 60 | first reading |
Percentage of votes that are likes, at each of our measurements. A falling line is a game losing its crowd’s goodwill.
Community wiki
A fan-maintained encyclopedia this game has grown — measured from Fandom’s API. Not affiliated with Fandom.