Games like galaksia online
Games like galaksia online include Terraria, UFO 50, Vampire Survivors, Starbound, and The Scroll of Taiwu : Beyond The Dome. We matched them by the tags players give galaksia online on Steam (Casual, Adventure, Strategy, Arcade, and Sandbox): closest matches first, and among equally close ones the better-known games.

Terraria
Shared: Sandbox · Adventure · 2D

UFO 50
Shared: Arcade · Strategy · Adventure

Vampire Survivors
Shared: Bullet Hell · Casual · Pixel Graphics

Starbound
Shared: Adventure · Sandbox · Casual

The Scroll of Taiwu : Beyond The Dome
Shared: Sandbox · Strategy · Adventure

Cyberhunt
Shared: Casual · Adventure · Arcade

DAVE THE DIVER
Shared: Casual · Adventure · Pixel Graphics

SPORE™
Shared: Sandbox · Casual · Strategy

Sands of Salzaar
Shared: Strategy · Adventure · Sandbox

Exit the Gungeon
Shared: Arcade · Adventure · Bullet Hell

Mount & Blade II: Bannerlord
Shared: Strategy · Sandbox · Adventure

PixARK
Shared: Adventure · Sandbox · Casual

Death Coming/死神来了
Shared: Casual · Strategy · Adventure

The Escapists
Shared: Strategy · Pixel Graphics · 2D

Scribblenauts Unlimited
Shared: Casual · Adventure · Sandbox

Dragon Cliff
Shared: Strategy · Casual · Adventure

Noita
Shared: Sandbox · Pixel Graphics · 2D

Minishoot' Adventures
Shared: Adventure · Bullet Hell · Casual

Growtopia
Shared: Casual · Adventure · Sandbox

Keplerth
Shared: Adventure · Sandbox · Casual

Shelldiver
Shared: Casual · Arcade · Strategy

20 Minutes Till Dawn
Shared: Bullet Hell · Top-Down Shooter · Casual

Asgard's Fall — Viking Survivors
Shared: Casual · Bullet Hell · Strategy

To The Core
Shared: Casual · Arcade · Adventure