Train Valley [Steam store page]
Starts out simple, but to be really good at this game you have to be able to multi-task incredibly accurately and quickly. That just isn't me, but the game is well designed and will be fun for people who love the challenge of optimizing their strategy and reaction times to climb the leaderboard.

A game for people who want to pretend to be hackers. Unfortunately this is only slightly more authentic than Hollywood movie representations of hacking.

The tone of this game is somber. The primary goal in most game modes is to cause the greatest loss of life in your opponents as possible. There should be more freedom in unit selection, and a more detailed scoring system that rewards strategy.

Mass Effect [Steam store page]
The beginning gives decent gameplay and story - though it lacks a bit in the quest objective tracking, especially for the quest to scan 24 keepers. You just have to hope you run into them all during other objectives.

After leaving the initial station they give you far too many solar systems and planets to choose from, which gives the feeling that your choice doesn't matter. At least initially they should have limited it to a few important systems - and slowly opened up the galaxy. Navigation within galaxies themselves also seems unweildy, and it's annoying that you can click on planets which you aren't even able to visit.

The combat works fairly well, although your character doesn't return to cover quite as fast as possible - which can be annoyingly deadly at times. This probably has to do with the smooth animations - if you tap to move forward he takes a full step, unlike games like World of Warcraft where you can move in fractions of a step.

The skills and conversation menu are well thought out, and the ability to train extra skills that allow you to intimidate or flatter the person you're conversing with are satisfying. Overall the game has a few interesting aspects, but also a couple annoying flaws. It's probably still worth a look though.