freemium
adj.— «Integrated with IGA’s proprietary SDK, it is the first title in the company’s “freemium category,” offering premium gaming experiences for free thanks to integrated advertising.» —“IGA And ID Team For Free, Web-Based Quake Live” Kotaku Feb. 19, 2008. (source: Double-Tongued Dictionary)
Further reading
Centuries ago, monks who took a vow of silence developed their own hand signs, with hundreds of gestures, that are still in use today. Plus, how do speakers of different languages distinguish similar shades and tints of colors such as red, yellow...
Astronauts returning from space say they experience what’s called the overview effect, a new understanding of the fragility of our planet and our need to reflect on what humans all share as a species. A book about the end of the universe...