[quote name='drakesvg']Hmm. looks like that puts Just Cause 2 at around $10.00 US, Does anyone know if this is one you can activate on steam? its listed under there Retail Cd Keys but it implys it only takes certain serials.[/QUOTE]
The link above to the Steam forum discussion shows how to make the purchase go through for Just Cause 2 and mentions he registered the serial on Steam, so I'm assuming it works for all of them. Thinking about that one myself.