Single-player games like FOS
Below are 16 single-player Steam games similar to FOS, 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 FOS page.
Ranked picks
- 1
Reventure
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Indie and Adventure with FOS.
The one and only non-linear adventure with 100 different endings. Don't just wishlist me. I'm not that expensive... also, look at those reviews!
- 2
Reigns
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Indie and Adventure with FOS.
Sit on the throne as a benevolent (or malevolent) medieval monarch of the modern age and swipe your royal controller either left or right to impose your will upon the kingdom.
- 3
Dark Devotion
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
Explore the secrets of a mysterious fallen temple and put your Templar faith to the test in Dark Devotion, where no sacrifice is too great in praise of your God.
- 4
Castle In The Darkness
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
Castle In The Darkness is a fun and challenging shout out to the early days of video games! It's an action exploration platformer with some RPG elements, much like games from the Castlevania or Metroid series. It's super fast-paced, challenging, and full of secrets!
- 5
The Binding of Isaac
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
Now 20% More Evil with the Free Halloween update!
- 6
Infernax
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
Infernax is the adventures of a great knight who returns to his homeland only to find it plagued with unholy magic. Uncover the mysteries of the curse and face the consequences of your actions.
- 7
Terraria
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
Dig, fight, explore, build! Nothing is impossible in this action-packed adventure game. Four Pack also available!
- 8
Lovecraft's Untold Stories
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
Lovecraft’s Untold Stories is an action roguelite with RPG elements. Explore randomly generated levels based in Lovecraft's stories, fight cultists and all kinds of monsters from the Mythos, improve your gear, solve puzzles, and find clues and knowledge to defeat the Great Old Ones.
- 9
TITAN HUNTER
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
TITAN HUNTER-roguelike game where you have to wander around the world in search of TITANS You will have to go through the confusing locations filled aggressive monsters and powerful weapons and finally avenge your people.
- 10
Last Knight
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
Work your way through unfriendly lands, defeat giant bosses and free the kingdom in the epic role-playing game "Last Knight".
- 11
70 Seconds! Adventure
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
70 Seconds! Adventure - a game where you have to wander around the locations in search of a way out of here. You will have to overcome the intricate locations filled with aggressive monsters and various bosses. Choose your weapon and arm yourself with it and go to a dangerous world
- 12
Throne of Fate
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
Throne of Fate is a hardcore dynamic RPG roguelike, where you have to clear the land from the creatures that have invaded them. A variety of locations, a variety of weapons, different items, and invincible bosses are waiting for you in Throne of Fate!
- 13
Book of Shadows
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
The story will tell you about a dark wizard who spent his entire life hunting for the book of shadows and one day accidentally finds out where it is stored. The book is hidden deep in the library and is inaccessible to the dark forces.
- 14
SPACE Craft
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
Your ship crashed on the unknown planet BURA 0-5.1. This planet is not yet unknown to your race and who knows what awaits you here!
- 15
Azure Sky
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
Azure Sky is an action, puzzle and platform game. You need to take on the role of a young man, who will later gain power over his consciousness and learn to master magical abilities.
- 16
Mighty Vikings
Single-player alternative to FOS — playable solo, no multiplayer required. Shares Action and Indie with FOS.
You have to take on the role of Captain Bjorn and go on an adventure and clear the land of evil spirits.