Each cubelet below is linked to a full decklist. Special rules, if needed, are provided here. These are meant to serve as a guide of what you can do in this format and not a set way to build.
Original Loading Ready Run Cubelet
The one that started it all! Thanks again Alex Steacy for starting something special.
Legacy Cubelet
The current iteration of a "Legacy" cubelet that the site admin maintains.
Learn to play magic Cubelet
Focused on introducing brand new players to a lot of the introductory types of cards they will come across with a small hint of spice. Budget friendly and very basic. Great for teaching how play the game. The concept of playing your land each turn is there, but not being flooded or screwed in a game is eliminated, so new players can focus on the battlefield and what is happening in the game.
Un-Cubelet
Special Rules: A contraption deck contains 1 copy of every contraption that was released in Unstable. Players assemble their own contraptions.
Pauper Cubelet
Commons only sounds like a great time!
Commander Cubelet
Special Rules: Randomize or select one guild colored commander from the set of 10 commanders. You may play any card just as you could in a regular cubelet. However, you may not play cards that match your commander's color identity as land. All rules pertaining to commanders (commander damage, tax, etc.) are still in effect. With this added layer, 30 life is reasonable for a normal game.
If a player has a hand of all cards that are in their commander's color identity (i.e. they can not play any as a land), they may reveal their hand, shuffle it into the library, and draw a fresh seven cards.
If a player has a hand of all cards that are in their commander's color identity (i.e. they can not play any as a land), they may reveal their hand, shuffle it into the library, and draw a fresh seven cards.
One-Drop Cubelet
Special Rules: Life total is 6. Games are meant to be QUICK!
Innistrad Plane Cubelet
Built of cards solely from the Innistrad plane. This list in particular was built from an existing Innistrad Cube and meant to show that you can build a cubelet from a cube. It's also a pretty fun cubelet in and of its self.
Tempo Cubelet
While cubelets are for up to 4 players in a multiplayer battle, this cubelet is more designed for the 1v1 experience.
Windfall Cubelet
Better designed to make the most of the windfall variant/rules.
Mono-Color Cubelet
A thought experiment of what would happen if you focused on one color (artifacts help fill out the strategy).
Mono-White
Mono-White
Rags to riches cubelet
The win condition from Revel in Riches is live at all times: At the beginning of your upkeep, if you control 10 or more Treasures, you win the game. Lots of rewards for having and using your treasure and ways to keep everyone in control with their wealth.
mage's golgari cubelet
Site admin, Mage, here! Just want to show what it could look like if you don't color balance and just play your favorite cards/colors.
"Format Staples"
Cubelet is a truly customizable experience. That said, after building a few, you find that there are "staples" you tend to include across each one. This is that Moxfield Package. This isn't a law of the format, just a resource for those having fun building lists and are tired of typing in the same 20-30 cards.