Games like Gulugulu
Games like Gulugulu include Shelldiver, Cookie Clicker, (the) Gnorp Apologue, Scritchy Scratchy, and Minami Lane. We matched them by the tags players give Gulugulu on Steam (Idler, Creature Collector, Life Sim, Management, and Roguelite): closest matches first, and among equally close ones the better-known games.

Shelldiver
Shared: Idler · Management · Resource Management

Cookie Clicker
Shared: Idler · Management · Casual

(the) Gnorp Apologue
Shared: Idler · Management · Roguelite

Scritchy Scratchy
Shared: Idler · Roguelite · Resource Management

Minami Lane
Shared: Life Sim · Management · Cute

Tiny Pasture
Shared: Idler · Creature Collector · Cute

Potion Craft: Alchemist Simulator
Shared: Management · Resource Management · Life Sim

Bills Must Be Paid
Shared: Roguelite · Idler · Management

Digseum
Shared: Idler · Management · Casual

Cornerpond
Shared: Idler · Creature Collector · Management

Rusty's Retirement
Shared: Idler · Management · Simulation

Chillquarium
Shared: Creature Collector · Idler · Animals

Luck be a Landlord
Shared: Roguelite · Roguelike · Resource Management

Youtubers Life
Shared: Management · Life Sim · Casual

Supermarket Simulator
Shared: Management · Life Sim · Simulation

PlateUp!
Shared: Management · Roguelite · Roguelike

My Little Life
Shared: Idler · Life Sim · Creature Collector

Timber Rush
Shared: Idler · Roguelite · Resource Management

Nodebuster
Shared: Idler · Management · Casual

MyVoiceZoo
Shared: Creature Collector · Idler · Cute

Big Ambitions
Shared: Management · Life Sim · Resource Management

Tiny Bookshop
Shared: Life Sim · Management · Casual

Spirit City: Lofi Sessions
Shared: Creature Collector · Idler · Life Sim

Horsey Game
Shared: Creature Collector · Life Sim · 2D