Free games like 15 Days
Below are 8 free-to-play Steam games similar to 15 Days, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like 15 Days page.
Ranked picks
- 1
Doki Doki Literature Club!
Free-to-play alternative to 15 Days — no purchase or trial window. Shares Indie and Casual with 15 Days.
The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.
- 2
Life is Strange - Episode 1
Free-to-play alternative to 15 Days — no purchase or trial window. Shares Adventure with 15 Days.
Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.
- 3
Ultimate Custom Night
Free-to-play alternative to 15 Days — no purchase or trial window. Shares Indie with 15 Days.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 4
The Murder of Sonic the Hedgehog
Free-to-play alternative to 15 Days — no purchase or trial window. Shares Indie and Casual with 15 Days.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
- 5
Indigo Park: Chapter 1
Free-to-play alternative to 15 Days — no purchase or trial window. Shares Indie and Adventure with 15 Days.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
- 6
Sheepy: A Short Adventure
Free-to-play alternative to 15 Days — no purchase or trial window. Shares Indie and Adventure with 15 Days.
A Short Handcrafted Pixel Art Platformer that follows Sheepy, an abandoned plushy brought to life. Sheepy: A Short Adventure is the first short game from MrSuicideSheep.
- 7
missed messages.
Free-to-play alternative to 15 Days — no purchase or trial window. Shares Indie and Casual with 15 Days.
‘goth gf’s iPhone’ airdrops you - accept or decline? A love/horror story about life, death, & memes.
- 8
NGU IDLE
Free-to-play alternative to 15 Days — no purchase or trial window. Shares Indie and Adventure with 15 Days.
NGU Idle is a Free To Play Idle game that's full of weird humor, tons of upgrades and hundreds of hours of content! Try out NGU Idle today and experience the joy of Numbers Going Up!