Games like SCP Idle: SECURE. CONTAIN. PROGRESS. Demo
SCP Idle: SECURE. CONTAIN. PROGRESS. Demo. These games share the most with it, and each one says why.

Idle Lab Rats
Also science, resource management
Buy rats, train them in mazes and with lab equipment, and submit the best ones for grant money to expand your lab.
4.3★ galaxy
Boba Simulator : Idle Shop Management
Also tycoon, resource management
Run a bubble tea shop by tuning recipes to shifting customer tastes, stocking ingredients, hiring staff and opening branches.
88% steam
CityClickerDormant
Also tycoon, resource management
Grow a city by balancing residential, commercial and industrial zones and their tax rates.

Internet Cafe 98Updated
Also tycoon, resource management
Grow a 1998 internet cafe from a single junk PC by serving customers, upgrading machines and networking, and researching tech.
3.5★ galaxy
Holyday City: Reloaded
Also tycoon, resource management
Grow a town of shops and restaurants into a metropolis as businesses earn in the background and you reinvest in upgrades.
82% steam70% idle
Idle SoccerDormant
Also tycoon, resource management
A soccer management incremental where you name your club, pick a league and build a small team into a winner.

DorongineDormant
Also resource management, science
Harvest cash, ore, energy and brainpower, hire workers to click for you, and assign research across several topics.

PC Tycoon 2
Also tycoon, science
Grow a small office into a computer giant by designing CPUs, GPUs and laptops, writing an OS, researching thousands of techs and outselling rivals.
79% steam
Scrap Yard IdleUpdated
Also resource management, tycoon
Collect scrap by hand, then build crushers, separators and assemblers until the whole processing chain runs itself.

Idle Airport Tycoon - PlanesDormant
Also tycoon, science
Build an airport, buy planes, and fund research into new transport tech while keeping passengers happy to grow profits.

Idle Area 51Dormant
Also tycoon, science
Salvage a crashed UFO, research alien tech at a secret desert base, and run cover-up campaigns to keep the public from noticing.

Reactor Idle TycoonDormant
Also tycoon, science
Build power plants from wind turbines up to fusion reactors, balancing heat and electricity to keep everything under control while selling power.

Idle NoodleDormant
Also tycoon, resource management
Run a noodle restaurant, juggling staff salaries, expenses and equipment upgrades as you grow the business toward billionaire status.

Idle Survivor Fortress TycoonDormant
Also tycoon, resource management
Fortify a shelter in a zombie-ridden world, scavenging supplies and deciding whether to take in other survivor groups.

Meth Master
Also tycoon, resource management
Build a criminal drug operation by growing and cooking product, hiring dealers and chemists, and paying off cops, lawyers and politicians to avoid raids.
67% steam
Castle Clicker : Idle City Tycoon
Also tycoon, resource management
A clicker city builder where farms, mines and castles feed each other, with a bank that earns interest and ships sent out for minutes or days.
66% steam
Shark Game: New Frontiers
Also resource management
Sharks discover the ocean, then science, then other worlds. A text-forward successor to the old Shark Game.
4.6★ galaxy55% idle
LORED
Also resource management
A pixel-art resource web where every resource-generator is a little character. Deep and dense.
4.4★ galaxy55% idle
Black Hole FishingUpdated
Also science
Use a black hole to vacuum fish from a pond, then breed, inject traits into and research them while feeding the singularity to grow it.
89% steam
The Alterhistorian's Conquest
Also resource management
Run machines on a pannable grid, moving resources by hand between slots, to distill concepts and fluid elements into an elixir of immortality.
4.5★ galaxy
Budgie's Bug Shop
Also tycoon
Catch bugs and sell them in a shop staffed by parakeets, buying gear and abilities to grow profits.
4.6★ galaxy
IDLE_DIRECTIVEUpdated
Also resource management
Manage a limited grid inventory of producers and automation items while scavenging a dying world, trading with survivors, and resetting for augments.
86% steam
Exponential Locomotion
Also tycoon
A console-style jam prototype about building trains and stations and upgrading all of it.
4.4★ galaxy
Pipegame
Also tycoon
A factory incremental in the style of Miner's Haven, where you lay out machines to process and sell materials, made without the monetization.
4.3★ galaxy