Cost per Thousand. See CPM.
DAUs
Daily Active Users.
DLC
Downloadable Content.Generally, I suppose this would mean any content that has been downloaded. In practice, it appears to mean additional content that can be downloaded (whether for free or for a payment) for boxed products. Examples include the infamous horse armour for Oblivion or additional content for Burnout Paradise.
eCPM
Effective Cost Per Thousand. A method of comparing a CPC/CPA campaign to a standard CPM campaign. By aggregating the total amount of CPC/CPA revenue and dividing by the number of impressions served, you can calculate the effective CPM.
EIS
Enterprise Investment Scheme, a UK government initiative to encourage investment in early stage businesses. See p. 166.
F2P
Free to play. See Freemium.
Freemium
A business model whereby you give your core game away for free and charge users for premium services or virtual goods.
Free To Play
Also known as F2P. See Freemium.
GaaPy
A “game as a product”. A phrase coined by me, see p. 19.
GaaSy