Welcome to the Black Market, Pilot. We've got The Frontier's best selection of goods both legal and... questionable. Don't worry, your secret is safe with us.
— In-game description
The Black Market is the in-game store in Titanfall, allowing players to purchase a variety of items using the Credits they've earned in-game, including new Titan Insignias and Burn Card Packs. Credits cannot be purchased with real-world money; they must be earned in-game. Credits can be earned in a match by finishing matches, winning matches, completing Daily Challenges, and by getting your first victory for a day. Credits can also be earned outside of a match by "selling" your Burn Cards.
The Black Market becomes available after reaching level 11, where it will then be permanently unlocked like Burn Cards. While you are level 50, XP earned in a match will be converted into Credits. This allows Generation 10 Pilots who are unable to earn burn cards at a decent rate because they have no challenges to complete, have a good way to earn more Burn Cards. Players start out with 5000 credits.
In Titanfall 2, the Black Market does not return as its own screen. However, it is the avenue through which weapons, Camo, Boosts and Titans are bought.
In the Titanfall universe, the Black Market is the underground network on The Frontier that allows for illegal purchase of many restricted goods, such as Weapons, Titans, and Pilot training equipment. This is how pirates, mercenaries and most importantly; the Frontier Militia are able to requisition many pieces of equipment usually reserved for IMC Armed Services.
Notably, after the Battle of Typhon, the schematics for the Monarch-Class Titan were leaked onto the Black Market, resulting in the new Titan's availability to non-IMC personnel.
For 100,000 credits, Pilots can purchase a Forged Certification, allowing them to bypass any challenge, at the expense of not earning the relevant Experience Points, Credits and Burn Cards. Using this on a Regeneration challenge will also forfeit the Too Legit to Quit achievement. A Forged Certification costs 100,000 credits.
Completing Daily Challenges will reward you credits at the end of the match. The amount earned it shown on the Credits Earned tab of the Last Game Summary beside "Dailies". The amount of credits rewarded by completing a Daily Challenge can be found in the Dailies section of the Challenges menu.
Burn Cards are no longer discarded, but are instead "sold". Discarding Burn Cards now rewards you with Credits depending on the Burn Card. In the Burn Card Menu, viewing a card will show its Credit Value in the top right of your screen below the Credit Counter. All Common Burn Cards are worth 100 Credits; All Rare Burn Cards are worth 400 Credits.
Once you are level 50 experience earned won't count towards leveling anymore, so it will be converted to Credits at the end of a match. You get 10% of your earned Experience Points as Credits, rounded down; it will be counted as "MISC" in the Credits Earned tab of the Last Game Summary.