Games like MergeCrafter
Games like MergeCrafter include Idle Champions of the Forgotten Realms, Cookie Clicker, Shelldiver, Potion Craft: Alchemist Simulator, and Dragon Cliff. We matched them by the tags players give MergeCrafter on Steam (Idler, Free to Play, Crafting, Casual, and RPG): closest matches first, and among equally close ones the better-known games.

Idle Champions of the Forgotten Realms
Shared: Idler · Free to Play · Strategy

Cookie Clicker
Shared: Idler · Casual · Incremental

Shelldiver
Shared: Casual · Idler · Incremental

Potion Craft: Alchemist Simulator
Shared: Crafting · Simulation · Relaxing

Dragon Cliff
Shared: Idler · RPG · Strategy

Shop Titans
Shared: Idler · Crafting · RPG

Nodebuster
Shared: Idler · Casual · Incremental

Digseum
Shared: Idler · Casual · Incremental

Melvor Idle
Shared: Idler · Casual · RPG

Stardew Valley
Shared: RPG · Simulation · Crafting

Graveyard Keeper
Shared: Crafting · RPG · Simulation

Keep on Mining!
Shared: Idler · Casual · Incremental

My Time at Portia
Shared: RPG · Crafting · Casual

Chef Knight
Shared: Casual · Incremental · Simulation

A Game About Feeding A Black Hole
Shared: Casual · Idler · Incremental

DAVE THE DIVER
Shared: Casual · Management · RPG

Bills Must Be Paid
Shared: Idler · Incremental · Strategy

Infinity Nikki
Shared: Casual · RPG · Free to Play

Factorio
Shared: Crafting · Resource Management · Strategy

Mini Motorways
Shared: Casual · Simulation · Strategy

Loot Loop
Shared: Idler · Casual · Incremental

Incredicer
Shared: Idler · Casual · Incremental