Games like Idle Orbital Marble
Idle Orbital Marble. These games share the most with it, and each one says why.

Gear clickerDormant
Also idle, merge
Buy, merge and place gears to build a factory, working through levels with their own challenges.

Merge and DigUpdated
Also merge, idle
Merge pickaxes into stronger ones and drop them onto blocks to mine resources, with rewards building while you're away.
75% idle
Train Miner: Idle Railway GameUpdated
Also merge, idle
Chop trees for materials, merge carriages and lay track to expand a train empire.

Will it Crush? Idle Game GearUpdated
Also idle, physics
Build and upgrade a toothed roller machine that crushes whatever you feed it.

Dessert Factory IdleUpdated
Also idle, merge
Bake treats in a dessert factory and combine matching machines to upgrade them into ones that make fancier sweets.

Gold and Goblins – Miner GamesUpdated
Also idle, merge
Run a goblin gold mine, merging goblins into stronger miners and boosting them with collectible cards.

Merge Gun: Shoot ZombieDormant
Also merge, idle
Combine identical guns into stronger ones and use them to hold off waves of zombies.

Idle ArmyUpdated
Also merge, idle
Merge soldiers into stronger units and push through waves of drones, ninjas and tanks.

Goblins Wood: lumber tycoonUpdated
Also idle, merge
Merge goblin workers to chop wood and mine in an enchanted forest while the crew keeps working offline.

Street Life: Merge Tap ClickerUpdated
Also merge, idle
Perform on the street, merge items and level up a cheerful busker on his way to riches.

Battle Royale Tycoon Idle GameDormant
Also merge, idle
Slide and merge weapon tiles on a grid to build a battle royale arsenal of hundreds of weapons.

Merge Planes Idle Tycoon GamesUpdated
Also merge, idle
Merge planes into better models and fly them around a runway for money to upgrade it.

Archer Forest : Idle DefenseUpdated
Also idle, merge
Defend a forest with animal archers by merging arrows into stronger ones, clearing stages, and beating bosses for loot.

Goblin Miner: Tycoon GameUpdated
Also idle, merge
Merge goblins into faster workers who chop wood and mine gold, unlocking labs, runes, and new territory as your empire grows while you are away.
75% idle
Idle HoleDormant
Also idle, physics
Swipe a hole around a curved world to swallow objects and grow bigger, upgrading it with idle earnings.

Merge BakeryUpdated
Also merge, idle
Merge recipes to unlock over 40 baked treats, serve customers, and redecorate a bakery that starts as a waffle stand.

NecroMerger - Idle Merge GameUpdated
Also merge, idle
Summon and merge undead creatures, then feed them to a growing Devourer that expands your lair and unlocks spells and stations.

Blade IdleUpdated
Also idle, merge
Turn a herb collector into a sword hero, clearing stages and dungeons and merging gear to power up.

Merge Car - Idle Car TycoonUpdated
Also merge, idle
Merge cars into better models and send them around a track, earning money every lap, even offline.
75% idle
Mega Tower - Casual TD GameUpdated
Also merge, idle
Merge and modify towers in a sci-fi tower defense that fights on its own but lets you aim manually.
50% idle
Idle Animal EvolutionDormant
Also idle, merge
Breed hybrid creatures in a lab by crossing pairs of animals.

Cat Hero : Idle RPGUpdated
Also idle, merge
A cat defends its sleeping owner's dreams, tapping to merge fish into stronger fish-missile ammo.

Idle Cat Gunner: Shooter RPGUpdated
Also idle, merge
Cats blast through obstacles with fused guns, and rebirthing at milestone stages speeds up growth.

Night Race - Idle Car MergerDormant
Also merge, idle
Merge cars into faster models and race them in underground night races.