Shawdowgrounds is an average and outdated top down shooter that has good gameplay and atmosphere, but compared to other games in the genre, it has nothing to offer for gamers of today.
I am a fan of this genre, and I am huge fan of the Alien Breed series.
I have spent a lot of time in the Alien Breed series and I would say it's quite fair to compare the two.
This game, compared to the majority of other games in the genre as of 2015 here, looks dated and grey and everything about it just feels and sounds average. The controls are decent, but lack of a run button ( you can roll) just feels out of place to me.
I understand this game was released a long time ago, which is one of the reasons why I just can't recommend anyone bother to spend time in this game while there are much better games on the market now.
You might as well spend your time and money playing another game in the genre such as any of the Alien Breed games.
I'm sure there are much better and more modern games in the market I'm not aware of too.
Consider playing those instead and skip this one. Your not missing out on anything here.