You know what, forget about what I said yesterday. In my first play I didn't have any problems. But here are some can be found: This platform (in screenshot) may raise automatically so you can miss it. Player has to wait for a while to it getting lower again. I went wandering when I came back it was like this. :D And mission after this can simply softlock, so no progresses. So it may be needed to play the mission again (mission after this screenshot's mission). Just wanted to inform if you're going to try Decay Singularity. Good game though.