Quality freeware horror games are in short supply these days, but the Chzo mythos has always stood out from the rest as a beacon of quality frights in the generally boring morass of the internet. Innovative storytelling, genuinely disturbing atmospheres and some of the best MIDI files you're likely to hear are all trademarks of the series, and they're here in abundance.
Gameplay wise, 7 Days a Skeptic is a point and click adventure game, set in deep space after the crew of your ship has encountered a mysterious floating object, and the decision is made to reel it in and examine it. You move around the world by pointing at the ground and clicking, and then moving towards the ground or object you clicked on, and interacting with it.
The music in this game is far more subtle than in it's predecessor, Five Days A Stranger, (A game highly recommended and available right here). Rather than being an omnipresent part of the game, it only comes in when the situation demands it. In its absence, the sound design steps up, and it makes the player feel quite alone, especially when the only sounds are your tense breaths in the EVA suit, or your footsteps as you investigate the bowels of the ship. It's almost a shock to hear someone else in the ship at times.
Graphics wise, this is something of a step down. Several critical objects are almost obscured by their backgrounds, and you're almost certainly going to spend a frustrating few minutes searching for things which you've been looking at, but not recognizing. Needless to say, this hardly brings on good feelings for the game.
Before you download this, if you haven't already, download and play 5 Days A Stranger. Without it, this game is hardly likely to make any sense.
Another solid adventure game, with a few graphical issues, but certainly a worthy addition to the Chzo mythos, and certainly worth the time you'll spend playing it.
Oh, and there's a twist at the end. It's not very good.