SAE692,414 +11.3%MM2329,869 −4.4%BF267,445 +17.3%BR244,860 −14.5%AM161,968 −6.9%TFFA152,732 +11.3%99NIT98,583 +12.9%BASA92,193 +8.5%RIVA89,684 −14.9%AA83,229 −1.8%FORS71,006 −20.0%SAB62,300 −14.8%FI62,242 +0.6%DSW61,126 −17.5%JS59,667 −21.7%FISC56,514 −8.8%DS55,989 −16.4%PB55,279 −28.1%CAC54,734 −14.7%AL50,566 MVS46,356 −23.8%PS9945,787 −0.1%TSR44,521 −2.2%AOTR42,816 −9.3%TSB42,146 −9.9%SYI37,826 −14.5%VL36,532 −16.8%DTI35,940 −16.7%MSO34,774 +25.2%VD34,328 −3.1%
studwise ALWAYS OPEN · --:--:-- UTC
NPPS

Nuclear Power Plant Sim

by The Roblox Plasma Science GroupSimulation
Play on Roblox ↗
Players online · live— last hour
Checked 9 h ago · updates about every minute
Day range
93 – 154
24 h average
124
High since tracking
1548 Nov 2026
Lifetime visits
3.6M
Favorites
30.2K
Likes
84.5%2,132 votes
Server size
30
Listed
20 Nov 2021
Last update
23 Sept 2026
−21.2% over the day
77.8108.3138.9169.420012:0016:0020:0000:0004:00

Times in UTC · tracked since 8 Nov 2026 · U = update published

News

updates and their effect

No updates since tracking started (8 Nov 2026). Last update before that: 23 Sept 2026.

About

The original game is restored to its prime. Original Game Created By: CacticusWinds/Milkyway Owned by: CacticusWinds/Milkyway Since 2021. I loved nuclear power plants ever since I was 10, so around 11 years old I made this game! Need help? Join the group and the communications server! [IMPORTANT: Find any bugs, glitches, errors, or have any ideas or suggestions? Please use the system messages feature!] (Shutdown = Update!) Any references or similarities to real world events is purely coincidental. Tags: Power Plant, Nuclear Power Plant, The Roblox Plasma Science Group, Explosion, Power Plant, Realistic, Roleplay, Multiplayer, Simulation, Nuclear, CNPP, Simulator

Simulation peers

same genre, most played
SAESteal An Egg681.6KTFFAThrow Food For Animals138.9KBASABreak and Steal an Egg89.5KSABSteal a Brainrot72.7KFIFish It!62KFISCFisch57.5KPS99Pet Simulator 99!45.1KTSRTap Simulator REBORN44.3K

Is Nuclear Power Plant Sim yours? Get the insider view.

This is its public quote. Studwise shows the rest, live: every server, every player, where they quit, how each update landed.

How it works