Single-player games like Portal Protectors
Below are 8 single-player Steam games similar to Portal Protectors, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Portal Protectors page.
Ranked picks
- 1

Rock and Roots
Single-player alternative to Portal Protectors — playable solo, no multiplayer required. Shares Action and Indie with Portal Protectors.
Rock and Roots is a captivating VR journey where you wield the power to dictate the ebb and flow of battle. Summon your enigmatic guardians of the woods with a magical hand to face the challenges. Conjure spells, dive into the magic world and reclaim your rightful place on the throne!
- 2

Treefender
Single-player alternative to Portal Protectors — playable solo, no multiplayer required. Shares Action and Indie with Portal Protectors.
Relive your childhood in Treefender, a VR-exclusive 4 player online co-op base-building game where you build your own treefort and defend it against a spacesquid invasion!
- 3

Save The Castle!
Single-player alternative to Portal Protectors — playable solo, no multiplayer required. Shares Action with Portal Protectors.
Save the Castle is an action packed VR tower defense that places you on the field of battle. Build your army, take over any tower and turn the tide of the war!
- 4

Odin's Fate
Single-player alternative to Portal Protectors — playable solo, no multiplayer required. Shares Action and Indie with Portal Protectors.
Discover Norse mythology in a story-driven Tower Defense game. Defeat hordes of enemies, develop your abilities, unlock new heroes, recruit Einherjar, manipulate time, and change your fate, Odin, son of Bor! Will you manage to stop the impending Ragnarök?
- 5

Royale Archer VR
Single-player alternative to Portal Protectors — playable solo, no multiplayer required. Shares Action and Indie with Portal Protectors.
Use your bow to defeat the enemy and challenge the harder stage with summoning allies, setting traps, and using magic!
- 6

Captain ToonHead vs the Punks from Outer Space
Single-player alternative to Portal Protectors — playable solo, no multiplayer required. Shares Action and Indie with Portal Protectors.
Ever wanted to beat a T-Rex up with a chancla, while building powerful towers that shoot piñatas, hot sauce and heat-seeking fireworks? Captain ToonHead is the VR tower defense game of your cartooniest dreams.
- 7

Towers and Powers
Single-player alternative to Portal Protectors — playable solo, no multiplayer required. Shares Action and Adventure with Portal Protectors.
It’s time to be a god! Save your residents and keep their islands from falling to the forces of chaos in this VR tower defense game.
- 8

Uphold The Realm
Single-player alternative to Portal Protectors — playable solo, no multiplayer required. Shares Action and Indie with Portal Protectors.
Uphold The Realm is a VR Tower Defense game that lets you take command of your wargames style campaign map to interact with levels and manage towers. When your ready - Shrink down onto the table and use your archery skills to defend against the oncoming hordes.