Single-player games like Costume Quest 2
Below are 15 single-player Steam games similar to Costume Quest 2, 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 Costume Quest 2 page.
Ranked picks
- 1

Costume Quest
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares Adventure and RPG with Costume Quest 2.
A Halloween adventure from Tim Schafer's Double Fine Productions.
- 2

The Adventure of Magical Girl
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares Adventure and RPG with Costume Quest 2.
Magical Girl + JRPG! The mercenaries Kaim and Asal are unable to get used to the court life, so they give up their lordship and continue to wander around, living by eating grass as mercenaries. But their boring routine is broken again. They would meet the three students from the magic academy.
- 3

Atelier Ryza 2: Lost Legends & the Secret Fairy
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares RPG with Costume Quest 2.
This story takes place three years after the events of the previous game “Atelier Ryza: Ever Darkness & the Secret Hideout,” and depicts the reunion of Ryza and her friends, who go through new encounters and goodbyes to discover a true priceless treasure.
- 4

Atelier Ryza: Ever Darkness & the Secret Hideout
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares RPG with Costume Quest 2.
The concept of this title, the latest in the series to depict a new "Atelier" world, is "True-to-life youths that develop together, even if just a little bit".
- 5

Hyperdimension Neptunia Re;Birth1
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares RPG with Costume Quest 2.
Packed with fast-paced, turn-based RPG action, fourth-wall-breaking, trope-demolishing dialogue, and more item, weapon, and costume customization than you can shake a Lvl. 1 Stick at, Gamindustri is a world set on turning the concept of the JRPG on its head!
- 6

Swords & Souls Legacy Collection
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares Adventure and RPG with Costume Quest 2.
All 5 classic games from SoulGame Studio in one epic collection. Slash through enemies and apples in Swords & Souls. Grab the wheel and outrun trouble in The Soul Driver. Outsmart and outmaneuver foes in the runners Rogue Soul & Rogue Soul 2 and solve clever puzzles with a flourish in The Gentleman.
- 7

The Legend of Heroes: Trails in the Sky SC
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares RPG with Costume Quest 2.
Picking up shortly after The Legend of Heroes: Trails in the Sky, Estelle travels across Liberl in search of Joshua. The journey involves more than seeking loved ones, however, as the Bracer Guild also tasks her with unraveling the mysteries behind the newly unveiled Society of Ouroboros.
- 8

Knights of Pen and Paper 2
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares Adventure with Costume Quest 2.
Prepare to inhabit a world of chivalry, class warfare and off-beat pop references. Knights of Pen & Paper 2 is a turn-based, retro style, pixel-art adventure full of danger, intrigue, death, and saving throws!
- 9

Psychonauts
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required.
A Psychic Odyssey Through the Minds of Misfits, Monsters, and Madmen. This classic action/adventure platformer from acclaimed developers Double Fine Productions follows the story of a young psychic named Razputin.
- 10

Psychonauts 2
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares Adventure with Costume Quest 2.
Combining quirky missions and mysterious conspiracies, Psychonauts 2 is a platform-adventure game with cinematic style and tons of customizable psychic powers.
- 11

Brutal Legend
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares Adventure with Costume Quest 2.
Brütal Legend is an action-adventure that marries visceral action combat with open-world freedom. Set in a universe somewhere between Lord of the Rings and Spinal Tap, it’s a fresh take on the action/driving genre, which in this case is full of imitation cover bands, demons intent on enslaving humanity and Heavy metal tunes.
- 12

Grim Fandango Remastered
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares Adventure with Costume Quest 2.
One of the most acclaimed adventure games of all time is now back, better than ever. Grim Fandango Remastered has the all the beautiful art and engaging story fans remember, but has also been remastered to look, sound, and control even better than the award-winning original release.
- 13

Broken Age
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares Adventure and Casual with Costume Quest 2.
A family friendly, hand-animated, puzzle-filled adventure game with an all-star cast, including Elijah Wood, Jack Black and Masasa Moyo. Funded by a record breaking crowdfunding campaign and designed by industry legend Tim Schafer, Broken Age is a timeless coming-of-age story.
- 14

Day of the Tentacle Remastered
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required. Shares Adventure with Costume Quest 2.
Originally released by LucasArts in 1993 as a sequel to Ron Gilbert’s ground breaking Maniac Mansion, Day of the Tentacle is back in a remastered edition that features all new hand-drawn, high resolution artwork, with remastered audio, music and sound effects.
- 15

Spacebase DF-9
Single-player alternative to Costume Quest 2 — playable solo, no multiplayer required.
In Spacebase DF-9, you'll build a home among the stars for a motley population of humans and aliens as they go about their daily lives. Mine asteroids, discover derelicts, and deal with the tribulations of galactic resettlement in Earth's distant future.