Single-player games like The Case Book of Arne
Below are 17 single-player Steam games similar to The Case Book of Arne, 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 The Case Book of Arne page.
Ranked picks
- 1
Mysterious Mystery, EP 1: The Duo Dilemma
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Adventure and RPG with The Case Book of Arne.
Mysterious Mystery is a fully voiced mystery visual novel centered around the detective duo, Justin and Dakota. Solve multiple cases using Dakota's evidence gathering abilities and Justin's expert interrogation. Discover outlandish cases, meet unique characters, and become world class detectives.
- 2
Herald of Moira
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
Explore the region of Rosevale, craft potions through alchemy, lead an investigation against five suspects, and uncover the truth behind a massacre in this semi-open world gothic fantasy RPG.
- 3
Blue Detective: A Hotel in Scarlet
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
As a gothic detective, you solve mysteries with your colorful sidekick. Everyone you meet in this bizarre world has a peculiar disease. A unique talent, or a mere curse? You must get to the bottom of it all. Investigate murders, search for clues and complete the puzzle.
- 4
Red Chat Ritual – TSUMIMI TIME
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
An idol livestreamer is searching for her missing partner. You are not just watching her stream. Interfere with her broadcast, investigate clues on and off stream, and uncover the truth behind her partner’s disappearance.
- 5
When eyes close
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
When did you become a monster? In this nightmare, everyone is guilty. Everyone has a secret. A demon will make you remember what you did. Piece together your shattered past in a detective psychological horror and... WAKE UP!
- 6
The Test: Hypothesis Rising
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
The second chapter in The Test trilogy. Answer a series of in-depth questions to reveal hidden truths about yourself and unlock secrets to discover how your life can change drastically with just a few, slight modifications. ...But are you sure you want the answers you seek?
- 7
Rubbings
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
《诡拓》是一款中式民俗微恐风的悬疑推理游戏。你将扮演一名民俗杂志编辑，根据匿名信件中的拓片线索，深入封闭、神秘的睖睁村，这里多年来流传着失踪旅人和诡异祭祀的传说。通过亲历村志中的诡异故事，并在村庄中展开调查，你将逐步揭开埋藏数十年的真相。
- 8
Tide Up
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
Tide Up is a rather dark and gloomy adventure game. Accompany the girl in a dreamlike world of wonder. Collect the pearls scattered around the world and help the girl escape!
- 9
Sherlock Holmes: Crimes and Punishments
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Adventure with The Case Book of Arne.
Become the most celebrated detective of all time: Sherlock Holmes! Use your impressive talents as a detective to solve six thrilling and varied cases: murders, missing persons, spectacular thefts and numerous investigations that sometimes lead you into the realms of the fantastic.
- 10
Angels of Death
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
"Please... kill me." "Help me get outta here, and I'll kill you." ~ Angels of Death is a psychological horror-adventure game, consisting of four episodes.
- 11
Noel the Mortal Fate Complete Edition
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
This is a tale of revenge — of a demon, a girl, and their companions. After seven years of development, the popular dark suspense adventure "Noel the Mortal Fate" finally arrives as a complete edition with all 13 seasons included, fully upgraded and with no extra charges.
- 12
DRAPLINE
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
"DRAPLINE" is a roguelite training game where you raise a dragon girl who eats anything and train her to become the strongest in one year. Feed her a variety of things to increase her abilities, combine various skills to build your own strategy, and defeat the impending catastrophe!
- 13
Tsugunohi
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
One of the most terrifying J-horror games of all time is coming to Steam at long last. What's more, all you have to do is make the player walk to the left!? This collection includes the seven initial works of the popular Tsugunohi series, as well as an entirely new episode.
- 14
The Forest of Drizzling Rain
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
Alas, it was the "promised place," where Shiori was never meant to go. Finally, a remake of The Forest of Drizzling Rain, that masterpiece of an exploration horror game with multiple endings from the creator of the big hit Angels of Death!
- 15
Angels of Death Episode.Eddie
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
"The boy made up his mind to face a cruel world." The new special edition of the psychological horror-adventure game "Angels of Death", which has also been made into an anime. The past of B4 floor master Eddie is revealed...
- 16
Evil God Korone
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
An unexpected collaboration from Tsugunohi, the game where horror invades daily life, and VTuber Inugami Korone, from VTuber group hololive. Inugami Korone, who has been live streaming many horror game, has become an evil goddess and taken over Tsugunohi. Now, chop your finger and give it to her.
- 17
Pharaoh Rebirth+
Single-player alternative to The Case Book of Arne — playable solo, no multiplayer required. Shares Indie and Adventure with The Case Book of Arne.
An ancient evil has been set loose, and Jonathan cursed in the process. Jonathan must now collect seven holy grails from around all of Egypt to cleanse himself of the curse of Sehur the First. Be delighted by the quirky humor, charming characters, and the beautifully designed world, in Pharaoh Rebirth+!