This week's Games for Windows Live Deal of the Week sees the indie hit Osmos (GFWL) taking a massive hit in price, being reduced a whole 75% from its original price of $10 (800 MSP) to only $2.50 (200 MSP). However, as with all GFWL games, pricing can vary from region to region, so boot up the GFWL client and see how much it'll run you.
The deal will run from today, November 11th, to next Wednesday, November 17th.
Enter the ambient world of Osmos: elegant, physics-based gameplay, dreamlike visuals, and a minimalist, electronic soundtrack. Your objective is to grow by absorbing other motes. Propel yourself by ejecting matter behind you. But be wise: ejecting matter also shrinks you. Relax… good things come to those who wait. Progress from serenely ambient levels into varied and more challenging worlds. Confront attractors, repulsors and intelligent motes with similar abilities and goals as you.
We've got the full list of Osmos (GFWL) achievements - check the list for guides to unlocking them.