About: http://webisa.webdatacommons.org/201297660

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The game takes place mostly at night, so it is dark, while HL2 (as far as I know) has more daylight levels, giving it a brighter aura.
http://www.w3.org/ns/prov#wasQuotedFrom	ubi.com