A little bit off topic, but for more space horror I want to recommend this little pure text mobile game called Lifeline. In its essence it's a short interactive story. You're tasked to help a person stranded on an alien moon, it's not fully horror (starts as a survival), but a few moments coupled with the fact that you can fail and lead the main character to something probably worse than death gave me shivers. Neat stuff and cost me only 2 or 3 bucks.