Hello, honest answer please

2Pac

Hows this games activity towards the higher levels playerwise? Do dungeons/raids get full often or is the game just dead?

Vladino

Raids hosted via quick battle option will fill in few minutes (higher level raids faster). Raids hosted without quick battle wont fill even if you use megaphone (most of the time). If you host normal battle you if it isn't lvl 95 and today it probably won't fill.

lvl 90 raids/bosses ppl usually run for seals and damasus steels:
Regina
Braha (not popular can take time to fill even if quick battle)
Lord Glas Ghaibhleann
Lugh
Infested Eochaid
Abomination (due to reducing shield strength is becoming popular)

lvl 95:
Dullahan (drops rare for lvl 95 ring)
Aes sidhe (drops rare for lvl 95 ring - can cause fps drop so imo isn't that popular)
Arcana
Rupacitus

lvl 100 - QB fills fast (normal battle wont fill ):
Claire
Enraged Elschulus (many ppl don't run him because of bad hitboxes....)
Macha
Agares

Niflheim:
If you are lucky to find someone that does train

Royal raid:
If you use megaphone but not in the morning (or when less ppl around)

Abyssal arena:
Megaphone/Guildruns

Redeemers (usually there are boats Monday evening, Saturday or Sunday - but don't expect boat to fill if you don't use mega and your host is not stable/fast enough):
Neamhain
Balor


Conclusion: Don't expect boats to fill until S3 (lvl 90 and up). In S3 boats won't fill without QB option (sometimes quest raids can fill - because it is additional raid departure). Non-raid battles are not popular. If you wait for Eira release maybe you can find even some boats before lvl 90....

Karijuna

Raids and level 90+ daily dungeons fill up pretty fast. Regular story dungeons...not so much. Your best bet is to play with a friend or join a guild and ask for help if there are bosses that you can't beat alone, otherwise you're gonna need some patience.

NoSleep

Game is far from it's height in popularity as you will be a soloist for lower boats until S3. The bright side is that b/t all the gifts you will be able to hit QB reqs so you shouldn't suffer from waiting too long for others. It's mostly endgame is the actual real gameplay and 1-90 a super long 1P RPG. Most interactions will be via MP or guild vs your party.

IntoHell

idk lol