Any truly Free2Play MMOs out there?

Have fun looking

PS: I would have said TERA, but you can buy extra bank space and character slots. Free users only get 2 character slots and 1 bank slot. But if you actually own the game or just buy a key, you get those unlocked. Othen than that, most items in the game shop are cosmetics or mounts. You can also buy keys that let you unlock strongboxes which can give you some goodies (enchanting material, XP boost, reputation boost, etc.) but most of those can be sold for gold so you can buy those on the broker too.

What with all the free server farms and bandwidth out there...

At some point, they're going to put the squeeze on you.

Check out MaidMarian's games. The games are meh but free (the last time I checked).

I'd say Rift, far as I know all you can buy is boosts, cosmetics, and mounts. It's not exactly what you are looking for but it's the closest you will probably get (The entire game is free, as in you don't have to buy any content, you can play as you would if you had a subscription before it went F2P)

I used to play this. Most of the items are cosmetic, and all of them can be bought from other players. Last I checked the game was a bit dead though.

Neverwinter. You can run through the whole game solo and get almost everything you need for the game not putting a cent into it. Also open pvp is absent in there (at least for now) thus there's no need to compete with other players. And their "Foundry" toolset makes this game endless.

Warthunder

In beta currently and you can pretty much do everything there is to do if you put enough time into it. You get some of it's premuim money just for doing tutorials and sometimes for doing challenges. I should always point out that this is a semi-simulated WW 1&2 wartime game. Right now they only have the flight combat up, but they are hoping to get the ground and naval combat up soon. Don't really think this what you had in mind when you posted, but it's worth at least a look.

Warframe. Everything shy of color packs, slots, and cosmetic sentinel items can be gotten in game. And yes, that includes every single warframe, weapon, orokin catalyst, orokin reactor, forma, and void keys. You are not required to buy anything.

You aren't likely going to find something that is free to play with cosmetics only. You can find games that work hard to limit what advantages you might be able to purchase with real life money. Rift, The Secret World, and Path of Exile. They all have some things you can buy with real life money that are more than cosmetics, but, with Path of Exile at the very least nothing is -required- with the extra stash tabs, given the size of inventory in game. Rift is a little harder because you buy bag slots, which is the only thing I consider a must in that game. The Secret World has a model similar to DCUO, in that the game is free, and the stuff you purchase is either classes, or content patches, but nothing is required.

Path of exile; all you can buy via cash shop are pure cosmetic (item effects / skill effects / pets) or (extra / customised) stash slot, which you don`t really need.

You do understand that the whole point of making a game Free2Play is to get people to buy stuff in-game right? Whatever company is making the game have to pay for their developers, servers and bandwith. If you're not paying upfront, they need some incentive to get you to pay in-game.

Tribes Ascend

WarThunder

World of Tanks

Warframe

Star Conflict

TF2

Nuff said.

Guildwars 2, while requires initial fee of boxed copy/digital key purchase, has nothing inside that you can't buy with in-game money. Gem Store uses gems as currency - you buy it with irl cash, or exchange for gold. There is no real gear grind and most available items are cosmetics/small boosters, which aren't needed to enjoy the game.

If any of your friends have a copy, ask them to let you test it, GW2 is really fun and different MMO from what we're all used to. My initial cost of 35€ already paid itself off months ago, and I haven't spend a dime since then.

Haven and Hearth. Hardcore MMORPG with permadeath and totally player-run world developed by two Swedish students.

There was one that did the F2P model really well, but Dungeon Fighter Online shut down due to "lack of interest" here in the West. Considering the servers were always -loaded- with people, I suspect that actually means that since the game was fully playable and enjoyable without spending a cent, they didn't make enough money on it for it to be financially viable for them to continue.
So the short answer is "Not really."
The genuinely free ones tend to lack quality.

i'll have to say none lol

I doubt there's any "true" F2P games. Money doesn't grow on trees, and ads alone won't cover the expenses in most cases. Either you accept it that games have F2P games have minor bonuses, (or pay2win in some cases) that gives you something and supports the developers to keep the thing running, or you can stop being cheapass and pay for your games.

you arent going to find anything without non-cosmetic items in the store....
kind of a stupid thing to look for int he first place....

Lord of the Rings Online can be completely free if u want it to.....
you get a SHITLOAD of store points just by playing the game, enough that u can buy every expansion to it out the store for free...

World of Warcraft

I can confirm that Haven and Hearth is completely free-to-play. There -is- no game store that I'm aware of. I wouldn't recommend it, personally... but if 100% free is your only qualifier, it fits.

Why was The Secret World excluded? Yeah it costs $15-$30 to pick up the game (depending upon current sales), but the cash shop is as you said, completely Cosmetic, the only things not completely cosmetic are (unnecessary) xp boosts just make you gain abilities a bit sooner, not that it takes long to begin with, and the DLC packs, which the DLCs you don't even need, they simply add a few hours of gameplay with an additional branch storyline on top of the main one from the region, and they typically connect to the main story of the game too. The DLCs you wouldn't even want to get until you're already so deep into TSW (as in beaten almost everything else), that the cost is pretty minimal in relation. Aside from that, the shop is completely cosmetic without any sort of "power ups" that make it unfair in comparison to someone who doesn't use the shop. The shop doesn't include special armors, or weapons, or "slots", there are a few weapons/talismans in the shop, but they're entry-level stuff that just makes the first hour of the game a bit easier, the only "slots" are inventory slots, and those aren't necessary, as you buy the same inventory slots through the currency you earn in the game at a cheap enough price. All the other ones listed and excluded I understand, but if you're excluding TSW, you might as well exclude GW2 as well, which isn't on your list, yet it's got a ton of "pay 2 win" included in it, in addition to being B2P. Which B2P isn't even a bad thing, as it (helps) to keep out gold farmers, spammers, and that type of bullshit. Even though the cash-shop in TSW is fully cosmetic too, you'd probably find yourself wanting to buy something from there, considering that since you don't use armor, you can dress your character however you want when you play whatever role you want, there's plenty in the in-game clothing shops to purchase, but some of the cash-shop ones are just completely awesome anyway that they're worth the buy.

eve online can be if you do well enough with a 21 day trial

Whoa. Ding. How could I have forgotten.
Phantasy Star Online: Blue Burst, on the SCHTHACK private server.
I mean, if you really want, you can donate to the server and 'buy' rare / otherwise unobtainable gear from the admins. Getting started and registered is a little tricky right now, because someone hacked and virus'd the homepage, but I've been playing that little gem for years.