Recommendations for mega adventure or series

[Dice4Hire]

Shattered Gates of Slaughtergrade is exceppent. I playued in it, and it is nicely spread out geographically, but tied together in the story. I was very new to 4E at that point, and our party got TPKed twice, but it was a lot of fun.

 

[catsclaw227]

Lost City of Barakus is a 3.5 advenure for levels 1-5, though it is recommendded that you only give 1/2 XP to slow progression. There are a lot of encounters and if the players tackled everything, they'd exceed the max level threshold for this adventure.

That said, it's super easy to bump up some of the encounters if necessary.

Very sandboxy, but with some clearly defined and distinct actions that the PCs can take.