Single-player games like 30 Days On Ship: Castaway – The First Days
Below are 8 single-player Steam games similar to 30 Days On Ship: Castaway – The First Days, 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 30 Days On Ship: Castaway – The First Days page.
Ranked picks
- 1
Carbrix
Single-player alternative to 30 Days On Ship: Castaway – The First Days — playable solo, no multiplayer required. Shares Action and Indie with 30 Days On Ship: Castaway – The First Days.
Carbrix is a sci-fi inspired multiplayer vehicle-building sandbox game where creativity meets action. Design and construct anything you can imagine—from sleek cars and powerful trucks to futuristic planes, bikes, and rockets.
- 2
Shades
Single-player alternative to 30 Days On Ship: Castaway – The First Days — playable solo, no multiplayer required. Shares Action and Indie with 30 Days On Ship: Castaway – The First Days.
Shades is an indie game in solo FPS truly immersive (almost no HUD) with infiltration and tactical extraction shooter aspects. Go stealth, or loud, in a variety of missions as a mercenary for an agency that really uses your skills to make this world better.
- 3
Ship Graveyard Simulator
Single-player alternative to 30 Days On Ship: Castaway – The First Days — playable solo, no multiplayer required. Shares Action and Indie with 30 Days On Ship: Castaway – The First Days.
Visit the largest ship graveyard in the world. A dozen kilometers of beach filled with wrecks. Hundreds of ships wrecked on the coast. Thousands of tons of steel. Choose the most valuable ship for you and start the adventure. Play as one of the workers during the most dangerous work in the world!
- 4
Salt 2: Shores of Gold
Single-player alternative to 30 Days On Ship: Castaway – The First Days — playable solo, no multiplayer required. Shares Action and Indie with 30 Days On Ship: Castaway – The First Days.
Salt 2 is a pirate-themed open world adventure focused on exploration, crafting, and survival. Play solo or with up to 5 friends, sailing the sea with your ship as a mobile base. Discover islands full of quests, towns, caves, and secrets. Level up, craft gear, hunt, fish, and customize your ship.
- 5
Lay of the Land
Single-player alternative to 30 Days On Ship: Castaway – The First Days — playable solo, no multiplayer required. Shares Action and Indie with 30 Days On Ship: Castaway – The First Days.
Lay of the Land is a sandbox adventure game set in a fantasy world where everything is physically simulated. Use the environment to your advantage and Explore, Fight, Loot and Build your way through mysterious lands.
- 6
Miniland Adventure
Single-player alternative to 30 Days On Ship: Castaway – The First Days — playable solo, no multiplayer required. Shares Action and Indie with 30 Days On Ship: Castaway – The First Days.
The world doesn't generate itself - you do it, shape the world as you wish! Start with nothing, and build dream houses for goblins and yourself while exploring, collecting resources, crafting, building, fighting, farming... and more!
- 7
Valheim
Single-player alternative to 30 Days On Ship: Castaway – The First Days — playable solo, no multiplayer required. Shares Action and Indie with 30 Days On Ship: Castaway – The First Days.
A brutal exploration and survival game for 1-10 players, set in a procedurally-generated purgatory inspired by viking culture. Battle, build, and conquer your way to a saga worthy of Odin’s patronage!
- 8
Wanted Raccoon
Single-player alternative to 30 Days On Ship: Castaway – The First Days — playable solo, no multiplayer required. Shares Action and Indie with 30 Days On Ship: Castaway – The First Days.
WANTED RACCOON is a 3rd person raccoon simulator with a storyline and extensive research space. Steal food, ride a skateboard, be inconspicuous, fight with people, create equipment, upgrade skills, lead resistance and find a kidnapped family!