The game has a very good atmosphere, and is also a very good remake. The slender man does have a new look, but it is an acceptable new style. I love to play, and will continue to. I wouldnt recommend it to people who **** themselves whenever they see something scary... Great game overall!
Can't quite give this a 10/10 because it is still a largely unfinished game. Still in what most would call "beta" most of the basic systems are firmly in place, but there's still a lot of work and tweeking to do. On it's own merrits though, it's a damn good game. Fans of Terraria will find a lot to love here, and a lot of new systems, such as researching, and power distribution have been added, making this game a well defined evolution over it's predecessors.
The reason that it at leasts gets that 9/10 is the devs. They're very active with the community, often responding to messages and making appearances on the message boards. They're also still hard at work to make the game better, releasing frequent updates. Simply said, this is a good game that only looks to get better.
The only thing it truly feels wanting of is multiplayer. While I don't think EVERY game should be multiplayer, something about the creative sandbox style just begs to be shared with friends. I won't take points away for what a game is not, but it is something for the devs to think on.
UPDATE: Wow, all this time later and what was a promising, fun, and original game has decended into a developement hell out of which it may never climb. Constant team changes, poor design decisions, and just a lack of clear progress has left this game that I was obsessed with for a good week, in the dust bin. I've tried resurecting my interest in this game several times, but playing just feels like a chore and progress through the world seems uninteresting at best. I kind of feel bad because of my initial love for this game, but now... I can't even bring myself to load it up. Sorry devs, but good luck on digging yourself out of the hole you've designed yourself into. My advice: scrap a lot and rework things. ESPECIALLY CRAFTING.