Games like NecroMerger - Idle Merge Game
NecroMerger - Idle Merge Game. These games share the most with it, and each one says why.

Dead Spreading:Idle GameDormant
Also idle, horror, resource management
Recruit soldiers and upgrade a base to hold off zombie waves while balancing defense and supply gathering.

Idle Survivor Fortress TycoonDormant
Also idle, horror, resource management
Fortify a shelter in a zombie-ridden world, scavenging supplies and deciding whether to take in other survivor groups.

Train Miner: Idle Railway GameUpdated
Also merge, resource management, idle
Chop trees for materials, merge carriages and lay track to expand a train empire.

The Eastern Sacrifice
Also horror, resource management, idle
Command a sect in an Eastern Cthulhu-flavored world, sending disciples to explore and slay demons while you build out industries and climb divine ranks.
55% steam
Alice's Gaze
Also horror, idle
Guide Alice through a haunted mansion as a cat god's altar pays out gold, reviving rooms one by one while idle battles and light puzzles lead toward an escape.
91% steam
Spellbound & Shelved
Also magic, idle
Hire gnomes to reshelve thousands of spilled spellbooks in a wizard library. Flip the sign to trade customer income against the mess they make, until the last book is put away.
87% steamhas ending75% idle
Hearth and Hamlet
Also magic, resource management
Grow a campfire into a magical medieval kingdom by gathering, assigning workers, setting laws and researching a permanent tech tree.
83% steam
Unnamed Fantasy Waiting Game
Also magic, resource management
Wake alone in a magic-ruined world and stretch scarce resources while waiting, reading and uncovering what happened.
4.4★ galaxy
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.

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.

Blacksmith - Merge Idle RPGDormant
Also merge, idle
Merge weapons into over 81 new designs, use runes to multiply gold and duplicate items, and reset for Soul Gems when progress slows.

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

Candy Critters: Idle MergeUpdated
Also merge, idle
Buy and merge cute critters that chew through candy blocks to uncover coins and treasure across a sugary world.
75% idle
Cat Hero : Idle RPGUpdated
Also idle, merge
A cat defends its sleeping owner's dreams, tapping to merge fish into stronger fish-missile ammo.

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.

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

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
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.

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

Icy Village: Survival IdleUpdated
Also idle, resource management
Lead survivors in a frozen land, gathering wood, stone and food, assigning jobs and crafting tools to grow a campfire into a village.
75% idle
Idle Animal EvolutionDormant
Also idle, merge
Breed hybrid creatures in a lab by crossing pairs of animals.

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

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

Idle Cult Empire - Evil TycoonUpdated
Also idle, horror
Recruit followers, automate rituals and dig for rare materials to grow a secret cult, with progress continuing offline.
75% idle