1
Squirrel's Pick Squirrel's PickThe best game on this page. If you only try one, try this. Closest Match Closest MatchThe most similar game to the anchor, by what players say.
Real Time TacticsCity Builder2D Platformer
$8.99 ~10.4 hr median no co-op complexity: light 90% of 1k
The Squirrel's verdictGame Dev Story is a Kairosoft-style management loop — originally a 1997 Japanese PC game, later ported to mobile, and now on Steam — where you design games and hire staff, with stats-driven output replacing deep simulation. It holds a Very Positive rating (90% positive) and a median playtime of 10.4 hours, and suits players who want a lighter, well-reviewed loop over granular tycoon systems.
Not for you if you wanted phone-design specificity or depth, rather than a shorter, lighter management game ported from a decades-old mobile title.
2
TRADER LIFE SIMULATOR 2
PC
Immersive SimEconomyTrading
~10 hr median no co-op complexity: light 69.7% of 396
The Squirrel's verdictBoth games put you inside a small business build-and-manage loop with a first-person or menu-driven design layer instead of pure spreadsheets. Trader Life Simulator 2 swaps phone R&D for retail stocking and driving/delivery mechanics, with a bigger map and more products than its predecessor. Fits players who liked designing product lines but want a physical, walk-around store instead of an office sim.
Not for you if you need female, child, or teen NPCs, a working map/navigation system, and stable driving physics rather than glitchy vehicle handling.
3
Device Doctor Simulator 2024
PC
FPSImmersive SimElectronic
$9.99 ~3.1 hr median no co-op complexity: light 64.7% of 184
The Squirrel's verdictBoth center on phones as the core object, but where Smartphone Tycoon has you design and market handsets, Device Doctor Simulator 2024 has you diagnose and physically disassemble them, puzzle-style, with an in-game scanner flagging faults. It suits players who liked the phone-focused fiddling but want mechanical repair tasks over business management. Median playtime sits around 3.1 hours.
Not for you if you want business/design depth rather than repetitive repair tasks, since reviews report limited phone variety and recurring bugs blocking task completion.
4
Life SimCharacter CustomizationOpen World
~8.3 hr median no co-op complexity: light 57% of 637
The Squirrel's verdictBoth are single-system simulation games built around detailed customization loops rather than deep management systems. Smartphone Tycoon has you designing phones; Live the Life has you managing an apartment, shopping, and daily routines. Steam rating sits at Mixed (57% positive), and reviews describe very slow progress since the 2020 release, with some reviewers noting an announced shift toward an online version.
Not for you if you want a completed single-player game or consistent updates, given the slow pace of development since 2020.
5
RPGOpen World
$9.99 ~9.4 hr median no co-op complexity: light 55% of 411
The Squirrel's verdictMarket Tycoon shares the business-sim core of Smartphone Tycoon: build a company from scratch, manage staff, and grow through incremental systems. Instead of designing products, you run store operations directly, hiring cashiers and stockers to keep shelves running. Reviews report similar bug complaints. Median playtime sits at 9.4 hours, with Mixed reviews overall.
Not for you if you want the product-design loop of building phones rather than day-to-day store logistics, or need a polished release over a Mixed-rated one.
6
CapitalismEconomyTrading
$1.99 ~3.1 hr median no co-op complexity: light 47.6% of 168
The Squirrel's verdictE-Startup is leaner in scope and shorter in playtime (3.1 hours) than what Smartphone Tycoon aims for, swapping phone design for general manufacturing and contracts. Reviews describe being dropped in with no tutorial, vague instructions, and unclear worker mechanics. The developer has confirmed the project was abandoned, and reviews describe game-breaking bugs that were never patched.
Not for you if you want a tutorial, active development, or a stable release without game-breaking bugs.
7
Music
$14.99 ~50.8 hr median no co-op complexity: moderate 46.1% of 178
The Squirrel's verdictSame design-then-manage loop as Smartphone Tycoon, swapped from phones to bands and albums, with a bigger scale letting you run dozens of artists instead of one product line. Reviews cite no tutorial and mechanics that turn tedious past the opening hours, so the payoff is for players who want to dig into systems, not a polished sim.
Not for you if you want a tutorial, a stable release, or something more than a text-based management loop with steep early friction.
8
EconomyCraftingSoftware
$9.99 ~4 hr median no co-op complexity: moderate 33.1% of 263
The Squirrel's verdictTech Corp. covers similar territory — design products, manage R&D and manufacturing, market releases, and watch stats decide the outcome — but broadens beyond phones into general tech and layers on more steps and heavier micromanagement per release. The developer confirmed development ended after a publisher dispute. Steam rating is Mostly Negative (33.1% positive) and median playtime sits at 4 hours.
Not for you if you want active updates or a polished release, since development ended and the Steam rating is Mostly Negative.