To unlock Adventures at different point values, you need to set up the Levels. Once you've set up your Adventures the way you want them, go to the "Management" tab, then "Levels." Add a new entry on the Levels List, and give it the title of your program (or whatever is easiest for you). We set our Board Size to 1,000 because that is the highest prize level we have. If you want participants to have access to an Adventure before they earn any points, choose a "Default Primary Adventure" from the drop-down menu.
Next, click “Game Levels” (the purple button) and then add a new Level. Enter the number of minutes needed to reach that Level. (If you want a Level to unlock every 100 points, for example, put "100" for each new Level you create, rather than "100," then "200," then "300.") Put a "1" in each of the X and Y location boxes. Next, choose a “Primary Adventure” if you only want to unlock one per level. Save each Level before creating the next one.
After you've finished entering all of your Levels, you'll need to make the Game Board active. Go to the "Programs" tab, and then click on the Edit icon for whichever program you want the Adventures to unlock for. Once in the Program you want, click the "Description & Game" tab. Select the game board you just created from the "Game" drop-down menu, then click "Save."
Following these steps should work, please let me know if you have further questions!