It's 22/2/22 (or 2/22/22, depending where you are), so why not commemorate this remarkable date by unlocking a 2G achievement today? The mere idea will likely be abhorrent to some — particularly those put off by unusual Gamerscore values — but you're not going to get a chance to pop an achievement of the relevant value on a mono-numeric date for over a decade, so what better way to mark the occasion? We've picked out five interesting candidates from the 161 available options (you can filter this list by just the 2G achievements to see the lot), and tried to keep unusual-Gamerscoreophobes in mind with ways to 'fix' your score after picking up one of these miniscule rewards.
Carrion — Flesh of Prey
Kicking things off is Carrion, a grisly action-platformer where you play as an ever-evolving flesh monster fighting back against the scientists that once held you captive. It's a perfect 2G target if you're keen to keep your Gamerscore total neat and tidy, since there are only two unusual scores up for grabs — this one and an 8G achievement — and the pair can easily be earned within seconds of one another. Better yet, you can double down on this one if you fancy, as there's a second stack of Carrion achievements available thanks to the Windows version, with both available with Game Pass. It doesn't hurt that the game is superb, and a relatively quick completion to boot.

Carrion
CARRION is a reverse horror game in which you assume the role of an amorphous creature of unknown origin.
Castaway Paradise — Leaf Me Alone
The Castaway Paradise achievements read like an episode of Numberwang, with Gamerscore values seemingly assigned completely at random. This 2G achievement for growing every flower in the game is the only one of its kind in the game, although anyone wanting to take repping the number two to the next level can do just that — Castaway Paradise also features a pair of 22G achievements. This list will be like Kryptonite to anyone who dislikes not having that standard 0/5 ending on their Gamerscore, and it's such a mess that you'd likely want to get the completion in order to keep things neat, which would take you some 15-20 hours.

Castaway Paradise
Instant vacation on your own tropical island! Decorate the island, play dress up, collect bugs, grow crops and help your new neighbors.
In Castaway Paradise you can do whatever you like!
Dwarrows — Settled In
Dwarrows has one of those cheeky unusual Gamerscore rewards where the game dumps it on you in the early stages, then gives you a shopping list of other things to do if you want to see your total returned to 'normal.' Fortunately, in this case, said tasks are relatively straightforward, with all of the irregular scores tied to befriending different kinds of animals. Pigs, bears, ducks, cats, chickens... most of these critters will earn you another 2G achievement for your collection, with the only exceptions being the dragon (for a whopping 5G, understandably) and the beaver at 3G, proving the lowly beaver to be the most valuable of the non-mythical creatures. We don't have enough tracked players to offer an accurate completion estimate for those who want to make friends with all the animals (and do all the rest), but Dwarrows has been pretty well-received, sitting at a four-star user rating here on TA.

Dwarrows
A peaceful 3rd person adventure and town-building game. Gather, build, puzzle, explore, and quest in a beautifully handcrafted world.
Warriors: Legends of Troy — Epic Failanx
Did we pick this one purely for the excellent name? Yes, obviously, although the unlock criteria is also pretty interesting, if a little fiddly for such a meagre reward. You need to break the shields of an entire phalanx formation without killing any of them, which isn't quite as simple as it sounds. If you'd rather stick to easy 2G achievements, Legends of Troy also has you covered — What a Waste simply requires you to burn an entire Fury bar without attacking, which is pretty much free. The two 3G achievements you'd need to even things out are also quite simple, but the game itself is... well, it's not great, let's leave it at that.

Warriors: Legends of Troy
The Games on Demand version supports English, French. Three thousand years ago, a poet sang of heroes strong enough to stand alone against an army. In Warriors: Legends of Troy, experience the epic Trojan War from the perspective of both the Greeks and Trojans, as two great nations battle for the love of a single woman. Download the manual for this game by locating the game on http://marketplace.xbox.com and selecting “See Game Manual".
Europa Universalis IV — Double the Love
One for PC players now, and PC Game Pass strategy epic Europa Universalis IV has dozens of 2G achievements up for grabs. Again, this one was picked for the name (it's nicely thematic for this piece), but anyone choosing to pick one of the many 2G achievements on offer here should know what a mammoth undertaking a full completion would be — the game has almost 350 achievements at the time of writing but just 1,480G total as the constant title updates keep piling on handfuls more low-scoring achievements. Still, if you're not so fussed about completions, there are two-pointers galore here, as well as stacks of high-ratio achievements if those are more your scene.

Europa Universalis IV - Microsoft Store Edition
Europa Universalis IV gives you control of a nation through four dramatic centuries. Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.
Honourable mention: Skyhill
Hardcore Twosday fans will want to check out the Skyhill Achievements, as the majority of the list is made up of 22G achievements — all the twos you can eat! The rest are worth an equally unusual 23G so there'll be some clean-up to do afterwards, but this post-apocalyptic roguelike RPG seems to have gone down pretty well with a TA score of 3.5/5, so it might be worth the effort.
Planning on adding a 2G achievement to your tag today to celebrate this delightful date? Or perhaps you might fire up something like It Takes Two or Army of Two instead? Let us know!