Games like The First Million Demo
The First Million Demo. These games share the most with it, and each one says why.

Matter Dimensions
Also incremental, challenges
A slow Antimatter Dimensions-style incremental where you start with one unit of matter and fight stacking nerfs.
4.2★ galaxy
Yet Another Challenge Tree: Adventure
Also incremental, challenges
Complete a series of challenges to build Challenge Power and find your way home from the Challenge World.
4.2★ galaxy
NG+Tree
Also incremental, challenges
A Prestige Tree variant where you can adjust the difficulty and content of the tree.
4.0★ galaxy
Idle TCGDormant
Also incremental, cards
An old-school browser incremental with a trading card theme, built to be finished over one to three days.
3.8★ galaxyhas ending
Automating the Philosophers StoneDormant
Also incremental, challenges
Energy is based on your peak resources across resets, so you can reset freely and rebuild elemental generators.
3.8★ galaxy50% idle
The Generic Tree
Also challenges, incremental
A deliberately plain prestige tree mod with challenge content.
3.6★ galaxy
Cosmic CollectionDormant
Also incremental, cards
Poke a black hole to pull collectible cards, chasing rare finds and unlocking fun facts along the way.
3.4★ galaxy
IGNOBLE
Also roguelite, incremental
Timed runs where you slaughter enemies for blood and bones, then spend the haul on a growing skill tree and a deck of ability cards.
83% steam
Check Back Hell
Also challenges, incremental
A heavily nerfed version of Check Back meant to test extreme patience, where finishing could take years.
3.2★ galaxyhas ending
Eternal Dice
Also incremental, cards
Battle enemies with dice; each win gives both you and your foe a stat-boosting card.
3.0★ galaxy
Idle Dice 2Updated
Also cards, challenges
Roll up to 25 independently upgraded dice and draw from a custom deck of unusual cards to score points and clear challenges.
81% steam
Luckyest
Also roguelite, incremental
Stake money on a grid of hidden outcomes, decide whether to cash out or push for multipliers, and spend winnings in a skill tree that improves future runs.
78% steam
The Tower - Idle Tower DefenseUpdated
Also incremental, cards
Defend a single tower against waves, buy permanent upgrades and research while idle or active.
50% idle
Lonely Knight - Idle Roguelike RPG
Also roguelite, cards
A knight grows stronger while idle, then takes on dungeons where you draft skills from three choices to build a deck and hunt boss powers.
66% steam
Antimatter DimensionsUpdated
Also challenges
Buy dimensions that buy dimensions, then break infinity, then break reality. The reference point every numbers-go-up game is measured against, and it has a real ending.
92% steam4.6★ galaxy200–600h ending55% idle
Rock BottomUpdated
Also roguelite
Swing a pickaxe through generated caves, smelt ore into bars and buy permanent skill tree upgrades to push through eight themed depths.
94% steam
NodebusterComplete
Also roguelite
Sweep your cursor over nodes, spend the bits on a huge upgrade web, go again. A tight, active, few-hour hit.
97% steam3–6h ending10% idle
Garbage GrowthUpdated
Also incremental
Pick up trash that people throw at you, add more polluters and hire rats to automate collection. A short, crude incremental with a skill tree.
91% steam3.9★ galaxy
It's FineUpdated
Also challenges
Survive the last 24 hours of a game dev crunch under your dog manager. Each station has its own mechanics, sleep powers a deep prestige tree, and there are alternate endings to find.
88% steamhas ending
Antivirus PROTOCOLDormant
Also roguelite
Destroy viruses to collect code fragments, spend them in an upgrade tree for new weapons and powers, and beat each level's boss to advance.
87% steam
OutholdUpdated
Also roguelite
A short tower defense run-based game where you spend collected resources in a large refundable skill tree between attempts.
4.4★ galaxy
Cavern Crawler
Also roguelite
A short prototype where you repeatedly crawl through caverns and grow stronger between attempts; all content fits in under an hour.
4.3★ galaxy
Leaf it Alone
Also incremental
Clear a yard buried in leaves with a rake, a blower or bare hands, upgrading tools until the slow chore turns fast and the garden comes back to life.
95% steam
Void Miner – Incremental Asteroids Roguelite
Also roguelite
Pilot a ship and an automated tower through asteroid fields, shooting rocks for resources that feed an upgrade tree between runs.
83% steam