Credits are the global "virtual currency" in the universe of Deus Ex. Credits are the official currency in countries such as Germany, France, the United States, Egypt, Canada, the Czech Republic, and the People's Republic of China. They are mostly used digitally through the internet and ATMs, but despite what their name implies, physical financial transactions can also be made through the use of tangible credit chips (or chits).
In 2027, alcoholic beverages cost 5 to 25 credits. Ammunition is also relatively cheap (9mm cartridges typically costs 4 credits, and even the most basic of street thug vendor carries a supply of basic ammo and grenades on him).
In 2029 in Prague, alcoholic beverages cost 10 to 50 credits. The 9mm bullet that a mere 2 years ago was valued at 4 credits has seen a sharp decrease to 1 credit, and various specialty items and military hardware goes for a premium. A basic pistol that cost 350 credits only two years prior now costs an astonishing 950 credits, and Praxis software, when available, cost 10,000 credits.
In 2052, it costs 2 credits to purchase a soda or candy bar from a vending machine, and 8 credits to purchase a pack of Coughing Nails brand cigarettes. Most Bartenders worldwide will sell cheaper drinks such as Forty and liquor for 10 credits. Non-explosive and non-energy ammo usually costs several hundred credits, and explosives such as LAMs and rockets have a street value of multiple thousand credits. Few people keep more than a thousand credits in their ATM accounts.
- Many signs in non-interactive Hengsha stores display prices in Chinese yüan, and in Deus Ex: Mankind Divided, it's not unusual to hear NPCs talk about dollars or bucks. Additionally, there are "dollar to credit" ATMs around in many of the older shops scattered throughout Prague, suggesting that other currencies are still in use.
- Despite occurring after a 20 year economic depression, credits in Deus Ex: Invisible War are apparently worth more than they were in Deus Ex.
- Many restaurant and store signs in Prague seem to be made from real-world signs denominated in dollars or euro, with the Credit symbol overprinted where the original currency sign would be. A train ticket seen in Dobromila's mission adds the credit sign despite Kc., denoting the Czech koruna, already printed. (The price is realistic in korun but not in euro.)