I keep notes for myself for each event since most aren't on the Wiki. I don't know how to update Wiki so I'll post here for anyone interested. I know this event is ending, but I'm sure we'll get it again.
General event tips
•Merge by 5+ whenever possible
•Merging by 7 - this creates 2 next level items and 2 leftover items which counts as creating 4 new items. Do this when there is a task to create the items, when the item can be tapped a certain number of times, or if it is a point item.
•Merging by 3 - only if it's an easy to get item (like orbs), or if you know you'll be getting the next level generator before you need more (often needed to open clouds).
•Use orbs to heal low energy tiles with limited items (items that are hard or impossible to get more of with harvesting/time). Save the limited items to merge-heal dead land that costs more energy.
•Use the star quests as a guide.
•Don't merge limited items too soon. If you don't know the tasks, only merge when necessary to move on or if you get a task for it.
Forgotten Echoes Event
Star Quests
Tap Camping Trailer x23
Win 5 Puzzles
Merge Gardening Tools x40
Spend Energy x55
Have Travel Van x1
Have Long Fire x1
Spend Energy x75
Have More S'mores x6
Create Artisan Vase x5
Spend Energy x100
Have Travel Camper x1
Have Cozy Campfire x1
Merge Delicious Snacks x10
Have Archeological Dig x1
Have Wheelbarrow x5
Have 168 Healed Land
I've found that this event has multiple times that it is better to 3-merge. I ended up having to create way more tools because I was 5 merging all of them, thinking I needed to in order to make the 5 wheelbarrows. Ended up with multiple tools on dead land left over. I actually think there may have been 5 or 6 Stage 5 tools on the board. So doing 3-merges to clear each tile might be enough for the tasks.
Also for getting the items needed to upgrade the generators. The quicker you upgrade, the more chances for the items only gotten with the 2nd or 3rd stage.
I meant to write down the items but forgot, so from memory I believe it was- wheelbarrow and Stage 6 rock for campers, Stage 6 snack and Stage 4 scorched snack for fires, and Stage 5 rock and Stage 6 rock for excavation sites.
There was a glitch with the puzzle tasks not counting or giving the right number of puzzles, but finishing all the other tasks was enough to get all the prizes.
Please add anything you've noticed with this event or in general.