As per our Early Access pricing statement (available on our Steam store page, if you haven't seen it), the price at Early Access launch was commensurate with the amount of content available in the game at that time—which was the first three Titan variants, a Single-player Skirmish mode, Multi-player and three battlefields. Since then, we've added many new Titan variants and a Single-player Scenarios mode, and the first Major Update is about to add new Close Combat mechanics and weapons, the new Stress mechanics and a complete overhaul of the game's damage model, not to mention the revitalised visuals.
Further to this and in-line with our stated pricing policy, we've today announced that we will be raising the price upon release of the first Major Update from USD9.99 to USD14.99.
We feel that this approach of raising the price upon release of Major Updates will appropriately reward those gamers who have joined us on our Early Access journey—and we are particularly happy that it rewards those of you who joined us from the very beginning.