Single-player games like Idle Trillionaire
Below are 9 single-player Steam games similar to Idle Trillionaire, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Idle Trillionaire page.
Ranked picks
- 1

拖拖拉拉小菲镇
Single-player alternative to Idle Trillionaire — playable solo, no multiplayer required. Shares Simulation and Casual with Idle Trillionaire.
想要抓住可爱的永雏小菲甩来甩去吗?拖拖拉拉小菲镇是个人势虚拟主播永雏塔菲的同人向游戏,作为一款轻量级的模拟建设类游戏,本游戏即没有单向门,也没有复杂的银河城式地图设计,更没有难以战胜的Boss,只有超多的可爱小菲在场景中乱跑!您只需要扮演一双无情的大手把她们拖来拽去。
- 2

Bunker Down
Single-player alternative to Idle Trillionaire — playable solo, no multiplayer required. Shares Indie and Casual with Idle Trillionaire.
The world is over. Can you manage to rebuild? The nuclear apocalypse has finally happened leaving you in charge of a bunker. Accept or reject characters from your bunker to assemble the best group in order to rebuild when you finally resurface.
- 3

The Waiting Room - An Existential Simulation
Single-player alternative to Idle Trillionaire — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Trillionaire.
Ever been to a waiting room? Ever wanted to? Well now's your chance! Enter The Waiting Room, get your ticket number and wait. "For what?" you might ask. Does it matter? It is an existential life-simulation metaphor? Or a ridiculous waste of time? Well, that, my friends, is up to you.
- 4

Real Pharmacy Simulator
Single-player alternative to Idle Trillionaire — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Trillionaire.
Become the owner of a pharmacy in Real Pharmacy Simulator! Manage the business, serve customers, and balance profit with ethics. Order medicines, organize the space, and decide how to run your business - honestly or riskily. Your decisions will determine the fate of the pharmacy!
- 5

wageslave
Single-player alternative to Idle Trillionaire — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Trillionaire.
A short, narrative, dystopian office survival game. Ship code to eat. Optimise your nootropics stack. Stay sane. Cope with HR's passive-aggressive pings. Climb the career ladder. Retire early (if you can).
- 6

Millennial Simulator
Single-player alternative to Idle Trillionaire — playable solo, no multiplayer required. Shares Simulation and Casual with Idle Trillionaire.
Its called Millennial Simulator. Pretty self explanatory. Work, earn cash, pay rent, upgrade, eat, sleep, explore. Repeat and SUFFER.
- 7

Paperwork
Single-player alternative to Idle Trillionaire — playable solo, no multiplayer required. Shares Indie and Casual with Idle Trillionaire.
Paperwork is a first-person office-building incremental game where you optimize an office to generate more and more money. Step into the office of Clarity, become a productive worker and watch profits grow.
- 8

Dollar
Single-player alternative to Idle Trillionaire — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Trillionaire.
This dollar is an excellent steam inventory item based on a real life currency item of the same name. Every hour you will receive a dollar, with a very small chance to receive the golden dollar. Good Luck!
- 9

Turn Based Boxing: Tactics - Legends Edition
Single-player alternative to Idle Trillionaire — playable solo, no multiplayer required. Shares Indie and Simulation with Idle Trillionaire.
A tactical turn-based boxing simulation with (optional auto-battle) and perma-death. From your backyard to a world title. Recruit Boxers, Assign Perks, Train Stats, Build Synergies, Manage Injuries, Unlock strategies, Upgrade your Gym, Bribe the Commission and create roster of Boxing Champions.