Republic: The Revolution is a newish game for PC where you take on the role of a political faction leader in a breakaway republic of the USSR. After playing for about an hour, I found myself with the same feeling I had upon playing MYST for the first time. This game is not about looking for some damn dirty hippie, though. But it does have that same "This is totally new" vibe to it.
It strives to be a full-on 3D simulation of what it takes to get power. Complete with speechifying in the public square, converting the local townsfolk and putting a baseball bat beatdown on those who get in your way.
So far, it is pretty hard and I have actually had to read the manual (all 50+ pages of it). If you are looking for a game that will challenge you or if you are one of those people that really loves the micromanagement of the Sim City series, give this one a shot. It is heavily discounted in most stores and gogamer.com has it for $17.90.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.