(Piped link are down, so i’ve change back to youtube link 🤷 )
0:00 Intro
0:14 Throne and Liberty – Free to Claim https://store.steampowered.com/app/2429640/THRONE_AND_LIBERTY/
0:45 Infinite Blue - Free https://store.steampowered.com/app/2775910/Infinite_Blue/
1:43 Harbinger - Free https://store.steampowered.com/app/2859800/Harbinger/
2:40 Breaker- Free https://store.steampowered.com/app/3012360/BREAKER_INITIATING/
3:18 The Vanishing - Free https://store.steampowered.com/app/3212240/The_Vanishing/
3:50 Mints Hints - Free https://store.steampowered.com/app/3150720/Mints_Hints/
4:22 Sim Solver - Free https://store.steampowered.com/app/3103230/Sim_Solver/
5:09 Fossil Skater - Free https://store.steampowered.com/app/3205980/Fossil_Skater/
5:40 Bear and Breakfast - Free
https://store.epicgames.com/en-US/p/bear-and-breakfast-77c209
6:09 Empyrion – Galactic Survival - Free from 10 oct https://store.epicgames.com/en-US/
6:53 Outliver Tribulation - Free from 10 oct https://store.epicgames.com/en-US/
The Vanishing seems a good single player horror