Games like Aquarium Life
Games like Aquarium Life include Stardew Valley, Chinese Parents, My Time at Portia, Starsand Island, and Travellers Rest. We matched them by the tags players give Aquarium Life on Steam (Casual, RPG, Indie, Life Sim, and Immersive Sim): closest matches first, and among equally close ones the better-known games.

Stardew Valley
Shared: RPG · Life Sim · Indie

Chinese Parents
Shared: Life Sim · Casual · RPG

My Time at Portia
Shared: RPG · Life Sim · Casual

Starsand Island
Shared: RPG · Life Sim · Casual

Travellers Rest
Shared: Life Sim · RPG · Immersive Sim

Retirement Simulator
Shared: RPG · Indie · Casual

Comedy Night
Shared: Casual · Immersive Sim · RPG

Yes, Your Grace
Shared: Indie · RPG · Casual

Melvor Idle
Shared: RPG · Casual · Indie

Roots of Pacha
Shared: Indie · Life Sim · RPG

Volcano Princess
Shared: Life Sim · RPG · Casual

Streamer Life Simulator 2
Shared: Life Sim · Casual · Immersive Sim

Little Witch in the Woods
Shared: Casual · Life Sim · RPG

Sword and Fairy Inn 2
Shared: Casual · RPG · Life Sim

Streamer Life Simulator
Shared: Casual · Life Sim · Indie

Reigns
Shared: Indie · Life Sim · RPG

I Am Future: Cozy Apocalypse Survival
Shared: Casual · RPG · Indie

The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Indie · Casual

Town of Salem
Shared: Indie · RPG · Casual

Sun Haven
Shared: Life Sim · RPG · Casual

Electrician Simulator
Shared: Indie · Immersive Sim · Casual

No Place Like Home
Shared: RPG · Life Sim · Casual

Touhou Mystia's Izakaya
Shared: Casual · RPG · Indie

Cyber Manhunt
Shared: RPG · Indie · Immersive Sim