This is a living post I'll update as I learn and gain feedback. Feel free to reply to this if you'd like to suggest revisions.
Level 1-18
Get your Newbie Weapon + Equip - Find your starting town and talk to the Premium NPC to the left of the Gatekeeper. They will let you exchange a newbie weapon token for a weapon of your choice. You will have spiritshots/soulshots, and a newbie ring to equip with a 7 day timer, so you got 7 days to get 19+. This is only doable with first character made on an account.
Get newbie quests (optional) - Pick up any quests on your minimap. Most will be discarded/not useful, but as you level a little extra adena can be worth the effort of picking them up if they weave into what you're already doing. There's a gap lvl 20-25 that you'll need no-class soulshots/spiritshots, and the newbie quest npc will score you some extras usable after the newbie set is expired (ends at 19).
SELL craft items at the Harbor! - As you level as a newbie, you'll pick up Thread, Varnish, Silver Ingots, Charcoal, etc.. these can be sold to players at the harbor for more than the npc (gatekeepers will teleport you to this place for free). Look for merchants with the BUY option and text displaying the interested items.
Save money for C Grade - Don't worry about spending money on equipment or weapons, hold out for C grade with the various newbie quests available.
Hunting - Check out http://l2.dropspoil.com/loc/1-99/monster%2Cboss%2Craidboss%2Cgrandboss.html for a quick overview of where on the map to hunt. White con is normally all you want, yellow+ can be difficult to effectively farm due to lack of gear.
@15 Pick up Grim Collector quest (doable 19+) in south side of Gludio - It asks you to hunt in Ruins of Agony/Despair. The adena reward is boosted on this server. The areas it hunts at has Herb of Progress drops as well.
Level 19-29
@19 Do 1st Job Change - At 19, start your 1st class transfer quest: https://l2wiki.com/classic/First_Class_Transfer_Quests This is the first time I suggest using the scroll of wind walk for 1 hr of movement, since you'll be doing a lot of walking to do your goals. When you near completing your first class quest, if you aren't almost 20, stay around on each task killing the monsters, you need to be 20 to finish the quest.
@21 Pick up more quests in gludio -
Sense for Business (obtained 21+) - hunt in Wasteland and get more adena
Vanquish Remnants (obtained 21+) - hunt in Abandoned Camp and get more adena
Hunt of the Black Lion
Arrow Vengeance
Leto Lizardmen Hunting
Conquest of Alligator Island
@24 Baby pets do NOT exist on classic - The baby pets typically can be done at 24, with good benefits, however they are not available on l2classic.
@25 Start the Moon Knight quest in Gludin - This gets you your D grade set.
Level 30-39
TBD..
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Questions:
What level is it ideal to start investing in dyes/tatoos?
Is purchasing C grade+ better via player merchants, or the NPC?
Should I save up my reagents for C grade and have a player merchant craft it? Will it be viable at 40, or how long will this take?
Are servitors useful for spellsinger/spellhowler/warlock during their wizard-phase?
What level do you typically get into a clan? Should you actively pursue it as early as possible for the XP bonus?
