Valve
- Portal 2 Review
- Steam missing notice again
- Steam sucks
- Steam Summer-Deals
- Steam Support does actually delete Tickets
- TF2: Meet the Medic and from now on Free2Play
- Valve and the TF2 and Dota 2 Halloween Events – Extrinsic and Intrinsic Motivation
- Valve vergibt Portal kostenlos
- Was die Source Engine braucht
- Was Steam braucht