Games like Naica Online
Games like Naica Online include Stardew Valley, Trove, Growtopia, OMORI, and Terraria. We matched them by the tags players give Naica Online on Steam (MMORPG, Casual, Pixel Graphics, 2D, and Hand-drawn): closest matches first, and among equally close ones the better-known games.

Stardew Valley
Shared: Pixel Graphics · RPG · Sandbox

Trove
Shared: MMORPG · Pixel Graphics · Sandbox

Growtopia
Shared: Casual · MMORPG · Sandbox

OMORI
Shared: Pixel Graphics · Hand-drawn · 2D

Terraria
Shared: Sandbox · 2D · Pixel Graphics

Albion Online
Shared: MMORPG · Sandbox · RPG

DAVE THE DIVER
Shared: Pixel Graphics · Casual · RPG

Unpacking
Shared: Casual · Pixel Graphics · Cute

Little Witch in the Woods
Shared: Pixel Graphics · Casual · Cute

The Mageseeker: A League of Legends Story™
Shared: Pixel Graphics · 2D · RPG

FINAL FANTASY XIV Online
Shared: MMORPG · RPG · Fantasy

Sticky Business
Shared: Casual · Cute · Pixel Graphics

Touhou Mystia's Izakaya
Shared: Casual · Pixel Graphics · RPG

Hero Siege
Shared: Pixel Graphics · RPG · 2D

Vampire Survivors
Shared: Pixel Graphics · 2D · Casual

Carto
Shared: Hand-drawn · Cute · Indie

The Elder Scrolls Online - Standard Edition
Shared: MMORPG · RPG · Fantasy

Draw & Guess
Shared: Casual · 2D · Cute

Impostor Factory
Shared: Pixel Graphics · 2D · RPG

Graveyard Keeper
Shared: Pixel Graphics · Sandbox · RPG

Melvor Idle
Shared: Casual · 2D · RPG

LiEat
Shared: Pixel Graphics · Hand-drawn · 2D

Starbound
Shared: Sandbox · Pixel Graphics · Casual

OneShot
Shared: Pixel Graphics · Cute · 2D