NecroMerger - Idle Merge Game
NecroMerger - Idle Merge Game Summary
NecroMerger - Idle Merge Game is a ad-supported, with in-app purchases Android app in Simulation by Grumpy Rhino Games. Released in Aug 2022 (3 years ago). It has about 2.1M+ installs and 64.6K ratings with a 4.66★ (excellent) average. Based on AppGoblin estimates, it reaches roughly 13.7K monthly active users and generates around $<10K monthly revenue (59% IAP / 41% ads). Store metadata: updated Feb 16, 2026, version 129.
Recent activity: 3.2K installs this week (16.6K over 4 weeks) showing steady growth , and 108 new ratings this week View trends →
Data tracking: SDKs and third-party integrations were last analyzed on Feb 27, 2026. The app's network data flows (API traffic to/from the app and its SDKs) were last crawled on Jun 12, 2025.
Store info: Last updated on Google Play on Feb 16, 2026 (version 129).
4.66★
Ratings: 64.6K
Screenshots
App Description
Merge monsters to feed the Devourer in this idle merge game mashup!
The Devourer is always hungry and it’s your job to feed it in this idle merge game mashup. Play as the NecroMerger and use dark magic to summon an army of monsters (skeletons, zombies, demons, banshees… the list goes on). Merge them from piddly little grunts into massive (and tasty) brutes, before feeding them to your ever hungry pet.
As you grow your Devourer you’ll attract the attention of merchants, champions and even rivals. Some can be useful, others must be fought… or fed to your insatiable pet. The bigger the Devourer grows the more your lair will expand and you’ll unlock powerful new abilities and spells.
Complete feats to unlock new stations and equipment… graves, altars, fridges and even a bathtub to hold excess slime. New stations will let you summon stronger (and even more tasty) minions. Manage your lair and monsters to maximize your resource generation.
NecroMerger is a whole new type of game that combines merge and idle mechanics with resource management to create something truly unique.
Grow Monsters
• 100+ minions to spawn and merge.
• Minions have unique abilities to manage (resource generation, damage, deliciousness).
• Create new Forgotten Minions by merging different types of minions together.
• Unlock powerful Legendary Minions with big benefits.
Expand your Lair
• Expand your lair. Unlock new equipment including; graves, altars and portals.
• Attract champions, merchants and thieves to your lair.
• Complete feats, master spells, brew potions.
• Use a unique prestige mechanic that takes you to unexpected places.
Events
• Take part in distinct repeatable events with special mechanics. You’ll battle your sister, keep bees and travel back in time.
• Head outside the lair to play seasonal events, whether that’s organising your own birthday party or playing Santa.
• Unlock unique skins and themes to change up your lair and its inhabitants.
Idle Merge Mashup
• A unique system of resource management.
• Resources generate even when you’re offline.
• Months of fun!
From the makers of Idle Apocalypse and Idle Mastermind, NecroMerger has the humour and inane chatter you’d expect of a Grumpy Rhino game.

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