Single-player games like Illegal Mahjong
Below are 13 single-player Steam games similar to Illegal Mahjong, 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 Illegal Mahjong page.
Ranked picks
- 1

Maid Knight Alicia
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Adventure and RPG with Illegal Mahjong.
Alicia is a female knight who has won many battles with her armor and sword. One day, a sorcerer she once let escape casts an curse of armor disablement on her. Now, only she can equip is a maid's uniform...
- 2

Midnight Mahjong
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Adventure and RPG with Illegal Mahjong.
Somewhere in Tokyo, in an exclusive mahjong Club. Rei is a clerk in this club. Her job is to play Mahjong with the guests. Players will operate Rei and play with 3 guests in the authentic Japanese Mahjong. Dead wall draw and Last tile from the wall... It all depends on your skills!!
- 3

Yes My Lord
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Adventure and RPG with Illegal Mahjong.
The protagonist was once a famous genius, but now he is poor. One day, he woke up drunk and found himself in an underground cemetery with demons wandering around. The mysterious girl "Foxy" who met in the cemetery taught him the necromancer magic.
- 4

HERO'S PARTY R
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Adventure and RPG with Illegal Mahjong.
"Find 30 people to come to the Demon Castle party!" One day, the king received a letter from the demon king, the old enemy of mankind. Although it was obviously a trap, the king decided to take advantage of this opportunity to suppress the Demon Castle.
- 5

Is It Wrong to Repay the Debt in a Dungeon?
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Adventure and RPG with Illegal Mahjong.
To repay the debt, both Akane and her mother have to earn a lot of money! Explore the dungeon, challenge strong enemies, and even use her own body! Everything she is trying to do is for saving her family!!
- 6

Please Subscribe! Magical Revantia Channel: The Magical Girl Powered by Viewers
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Indie and Adventure with Illegal Mahjong.
Kei, a retired magical girl, resumes her duties to defeat powerful villains while balancing her college life. Through streaming, she gains strength and investigates the villains' mysteries. The game features exploration, part-time jobs, and a unique combat system influenced by viewer interactions.
- 7

Nightmare Knight ~Sacred Maiden & Fallen Magic~
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Indie and Adventure with Illegal Mahjong.
The young girl Rayne, who became the sacred knight of the kingdom, was entrusted by Jas, the leader of the sacred knights and her lover, to investigate the disturbances occurring in a distant town named "Hakudeti".
- 8

The Winning Secret of the Newbie Strategist Princess
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Indie and Adventure with Illegal Mahjong.
A neighboring country has declared war! The first war in a long time. Due to a shortage of personnel, Estelle, the princess, has taken command of the army. She can't afford to lose this war, but... What will she do, Estelle!?
- 9

Yakuza 0
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Adventure and RPG with Illegal Mahjong.
SEGA’s legendary Japanese series finally comes to PC. Fight like hell through Tokyo and Osaka as junior yakuza Kiryu and Majima. Take a front row seat to 1980s life in Japan in an experience unlike anything else in video gaming, with uncapped framerates and 4K resolutions. A legend is born.
- 10

UndercoverAgent
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Indie and Adventure with Illegal Mahjong.
Undercover agent Saki has been given a new mission. She has to locate the headquarters of a criminal organization, steal their secret data, and destroy their facilities.
- 11

Dead-End City Blues OD Edition
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Indie with Illegal Mahjong.
In the slums of a futuristic city, a girl sets out to track down the drug that has taken it over. Strengthen your deck and defeat your foes in this card battling RPG.
- 12

Archmage Ricka
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Adventure and RPG with Illegal Mahjong.
In order to retrieve the illegal property embezzled by the evil Lord, Ricka received a mission to capture the Lord. But it was a trap. She fell into a dungeon arranged by the Lord in advance. Although the demons in the dungeon are weak, the existence of various traps makes it difficult to escape!
- 13

Tavern, Inn, and the Halberd
Single-player alternative to Illegal Mahjong — playable solo, no multiplayer required. Shares Indie and Adventure with Illegal Mahjong.
Mira, an adventurer, has been journeying in search of her missing lover. Seeking clues to his whereabouts, Mira arrives at a guild in a certain town. What fate awaits her there...? Will Mira be able to safely reunite with her beloved?