a review + a suggestion
Portal is an excellent puzzle game that I want my future kids to play. It really stretches your mind and has some amazing (albeit a tad bit dark) humor, which is why I recommend it for teenagers, who are reaching a point in their lives when they can understand when something is a little messed up and not take it as a norm.
That being said, compared to the vast stretch of games out there, it is quite low on violence (you knock over robots and blow up the the evil Artificial Intelligence at the end by solving a puzzle). The "gun" itself only shoots portals that you walk through, and it represents the only "weapon" in the game.
Minor violence and some mildly dark humor are the only issues that someone could possibly find wrong with this game, which are far outweighed by the benefits of a well-made puzzle. As far as its short length is concerned, go buy Portal 2, which is much longer and has a mode where they can play alongside, and work with, a friend.
I was really surprised that this website doesn't recommend the game "Antichamber", which can be purchased on the computer from the website store.steampowered.com
Antichamber is an incredible puzzle game that has stumped me pretty hard, and I'm a mathematician. It's a simple, yet wonderfully logical game for older teens who want a challenge. The only reason that I suggest it to that age group is simply because how difficult it is to complete it, but anyone would have fun wandering through this mind-bending fun house. Essentially, take the first-person shooter puzzle nature of Portal, and insert it into a game that is constructed to look and behave like an M.C. Escher painting using Alice in Wonderland logic, and you have Antichamber. It challenges you to look past the assumptions that we make based on spatial reasoning and figure out the logic of the room, rather than where an exit or goal should appear.
One of the very first puzzles involves walking around a corner into a room to find two stair cases, one going up and the other going down. Upon choosing a stair case to traverse, you go up or down, turn a corner, and run into a another set of identical staircases. After choosing between several identical staircases in this manner, you realize that you are being sent back to the beginning of the same room each time, and that you must choose the one path that you haven't selected, which is to go back the way you came, and when you turn around to go back around the corner you find that room you came from has changed into a tight corner that makes you run around in circles of changing corner (almost as though the corner was a post in the middle of a room that changes as you walk around it), and then it spits you out onto an exit that takes you out of the puzzle and back to the beginning of the maze, which is what the game is... It's amazing.
If you have a teen who eats through puzzle games like they're nothing, you should get them Antichamber. There's no violence, no dialogue (so no language), no sexual stuff, no money,... nothing bad to speak of, except that it's a devilishly inspiring and mind-blowing puzzle.
Sorry to seem like I'm advertising, but I tried to find if you guys had even heard of this gem, but there's no review for it on your website, which is a shame.