Games like Portal Fantasy
Games like Portal Fantasy include Monster Sanctuary, Temtem, Baldur's Gate 3, The Elder Scrolls Online - Standard Edition, and Coromon. We matched them by the tags players give Portal Fantasy on Steam (Turn-Based Tactics, Character Customization, Creature Collector, RPG, and Platformer): closest matches first, and among equally close ones the better-known games.

Monster Sanctuary
Shared: Creature Collector · Turn-Based Tactics · Pixel Graphics

Temtem
Shared: Creature Collector · RPG · Turn-Based Tactics

Baldur's Gate 3
Shared: Character Customization · RPG · Fantasy

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

Coromon
Shared: Creature Collector · Character Customization · Pixel Graphics

Hogwarts Legacy
Shared: Character Customization · RPG · Fantasy

Dragon Age™: The Veilguard
Shared: RPG · Turn-Based Tactics · Fantasy

FINAL FANTASY XIV Online
Shared: Character Customization · RPG · Fantasy

The Elder Scrolls IV: Oblivion Remastered
Shared: RPG · Character Customization · Fantasy

XCOM 2
Shared: Character Customization · Turn-Based Tactics · RPG

The Dungeon Of Naheulbeuk: The Amulet Of Chaos
Shared: Turn-Based Tactics · RPG · Adventure

Clair Obscur: Expedition 33
Shared: RPG · Fantasy · Adventure

Aniimo
Shared: Creature Collector · RPG · Adventure

DAVE THE DIVER
Shared: Pixel Graphics · Adventure · RPG

Sun Haven
Shared: Pixel Graphics · Character Customization · RPG

Monster Hunter: World
Shared: Character Customization · RPG · Adventure

Monster Hunter Stories 2: Wings of Ruin
Shared: RPG · Creature Collector · Adventure

Shovel Knight: Treasure Trove
Shared: Platformer · Pixel Graphics · Adventure

Guild Wars 2®
Shared: Character Customization · RPG · Adventure

Solasta: Crown of the Magister
Shared: Character Customization · RPG · Fantasy

Where Winds Meet
Shared: Character Customization · Adventure · RPG

Cassette Beasts
Shared: Creature Collector · RPG · Adventure

Beastieball
Shared: Turn-Based Tactics · Creature Collector · RPG

The World of Kungfu: Dragon and Eagle
Shared: RPG · Adventure · Pixel Graphics