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
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.
3.5★ 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
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.
89% steamhas ending
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
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
OutholdDormant
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
Idle DeepcoreUpdated
Also incremental
Mine blocks by hand, smelt ore into ingots, and grow into a network of automated mines running in parallel across claimed zones on a world map.
85% steam
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
Chef Knight
Also roguelite
Fight through dungeons for monster ingredients, cook them into dishes to sell to adventurers, and upgrade combat and cooking between runs.
95% steam