Project Spark

Edit (5th October 2015): following Title Update 16, the original method of unlocking this achievement became invalid, and an alternate method was introduced.

NEW METHOD (after 5th October 2015)

To view the available challenges for any champion:
1. Press the button when in a menu. If you are in a game (Crossroads, an episodic adventure, or user generated content), press the button and then press the button.
2. Select "Challenges"
3. Scroll along the "timed" tab OR the "goals" tab to find the challenges for the Karlsnor champion. There will be a single daily challenge in the timed tab, 7-11 one-time challenges in the goals tab, and 19 "level Karlsnor up" challenges (note: you only see one of these at a time) in the goals tab.

To complete the challenge:
Most are obtainable in a game of Crossroads. If you are struggling, search the user generated worlds with the search string "challenge", and you should be presented with a list of worlds with a continuous stream of 1 strength enemies designed for easy challenge completion.

If you don't know how to complete the challenge, check out this thread on the official Project Spark forums. (NOTE: it may not be 100% accurate any more, but it should give you a general idea of what to do.)

If you still can't work out what to do, try each ability the champion has, and check your percentage progress by viewing your challenges (see above) after each attempt.

If you still can't work out what to do, give up and try again tomorrow with a different challenge.

Note: this method is retroactive. If you had completed 1 Karlsnor challenge before the title update, this achievement will (or should...) unlock when you start the game for the first time after the patch.


ORIGINAL METHOD (no longer valid, but left here for posterity)

To earn this achievement, you must purchase/unlock 1 item from the in-game marketplace with credits earned in-game.

The cheapest item (Stone Hook) is priced at 500 credits, and is available to purchase/unlock at level 1.

edit (December 5th 2014): Following a change of policy by Team Dakota, the level locks on these items have been removed, and they are now all available to purchase no matter what level you are.

To earn credits:
Click on the button and select "Challenges" to see what you need to do.

To purchase/unlock the item:
From the main menu, click on Marketplace. Then click on the credit filter (looks like a silver coin) near the top left. This will filter all items you can purchase/unlock with credits, from lowest to highest cost. Then select the item you want to purchase/unlock and click on the "unlock now" button.

Achievement has been discontinued due to the server shutdown. It's impossible to unlock this now. Neither method works.