HALSKA Underground Research Labs

A Roblox experience owned by Nediah.

SimulatorENnuclear reactorraiderssecurity team

Description (written by the developer; not a statement by this register)

☢️ Set in 2052, step inside a premier research facility to operate, secure, or infiltrate a experimental nuclear reactor. 🔫 Defend the facility against hostile Raiders, or join their ranks to take control! 💣 Trigger a catastrophic nuclear meltdown and force a full evacuation of Maryland! The PNIFR-04, an experimental core prototype created by Richard Halska and Dr. Chad Thomas, was engineered to power all of New York City, until a devastating disaster altered its purpose. ❗ Please review our combat rules before playing: https://devforum.roblox.com/t/4778018 In order to join the Security team, you must be in our communications server. Takes place in Calvert Cliffs, Maryland, USA. Not affiliated with Calvert Cliffs Nuclear Power Station.

Last updated by the developer 8 Aug 2026, 19:38 UTC.

playing (measured 11 Aug 2026, 00:18 UTC)

114,064

lifetime visits

72%

liked (379 👍 / 149 👎)

2,764

favourites (24.2 per 1k visits)

30 December 2023

created (per Roblox)

Play on Roblox →

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 We do not publish numbers we have not measured.

Measurement log — every players count we have recorded
Measured (UTC)	Players	Change
11 Aug 2026, 00:18	0	first reading

Concurrent players at each of our measurements (insert-on-change).

Monetization — game passes

Raider Heavy Weapon Access

500 R$

VIP

300 R$

Neo Coil

250 R$

Emote Pack

120 R$

RP Tools

120 R$

Reactor Tablet

75 R$

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

Stillwater Hazard · other1,925

Reactor Startup · progression348 · 67.5% win

Nuclear Meltdown · progression184 · 29.8% win

Falling Hazard · other175 · 28.2% win

Electric Misconduct · other132 · 28.2% win

Disposed · other91

Crushed · other84

Emergency Shutdown · other64 · 12.5% win

Fire Detected · other36 · 7.8% win

Spontanius Combustion.png · other0

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.

Like ratio over time

Growth

2 measurements spanning 10 days. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 71–73 and does not start at zero.

Measurement log — every % liked count we have recorded
Measured (UTC)	% liked	Change
25 Aug 2026, 09:53	72	no change
15 Aug 2026, 09:51	72	first reading

Percentage of votes that are likes, at each of our measurements. A falling line is a game losing its crowd’s goodwill.