Games like Barkelona
Games like Barkelona include Undertale, Cat Goes Fishing, Montaro, Donut County, and OneShot. We matched them by the tags players give Barkelona on Steam (Education, Casual, Character Customization, 2D, and Cute): closest matches first, and among equally close ones the better-known games.

Undertale
Shared: Story Rich · Funny · 2D

Cat Goes Fishing
Shared: 2D · Cute · Casual

Montaro
Shared: Casual · Cute · Indie

Donut County
Shared: Casual · Cute · Funny

OneShot
Shared: Cute · Indie · Story Rich

Unpacking
Shared: Casual · Cute · Pixel Graphics

To the Moon
Shared: Indie · Story Rich · Pixel Graphics

Slime Rancher
Shared: Cute · Funny · Casual

WEBFISHING
Shared: Casual · Character Customization · Cute

There Is No Game: Wrong Dimension
Shared: Indie · Casual · Funny

Rhythm Doctor
Shared: Indie · Story Rich · 2D

Pikuniku
Shared: Casual · Indie · Cute

DELTARUNE
Shared: Funny · Story Rich · 2D

CHUCHEL
Shared: Casual · Funny · Cute

Muse Dash
Shared: Cute · Casual · 2D

Plants vs. Zombies GOTY Edition
Shared: Casual · 2D · Funny

Florence
Shared: Casual · Indie · Cute

Scribblenauts Unlimited
Shared: Casual · 2D · Funny

Cookie Clicker
Shared: Casual · Indie · 2D

Is This Seat Taken?
Shared: Casual · Cute · 2D

Draw & Guess
Shared: Casual · Funny · 2D

Geometry Dash
Shared: 2D · Character Customization · Indie

SUPER CHICKEN JUMPER
Shared: 2D · Cute · Funny

Wobbledogs
Shared: Cute · Funny · Dogs