ilomilo is a puzzle video game developed by Southend Interactive and Microsoft Game Studios. It was released on Windows Phone 7 on November 8, 2010 for AT&T customers. On November 26, 2010, a "secret" website was made available where players could get a code to download a trial and purchase the game early, while the game was officially released on Xbox Live Arcade on January 5, 2011. A DLC, titled ilomilo: Autumn Tale, was released for Xbox 360 only on March 9, 2011. On May 23, 2017, the game became available on Xbox One through its backwards compatibility program. There is also port for Windows 8 that adds 2 new sets of puzzles, 6 new pieces of music, and new story snippets. These new sets of levels are called "berry story" and "playroom escapade," and never became available on the 360 version.
Gameplay
The goal of each of the 49 levels is to unite Ilo and Milo, who are on separate sides of the level and must work together to meet. Players can change control between Ilo and Milo, or two players can control both Ilo and Milo. Because only one character can be "active" at any time, players in multiplayer alternate between controlling their given character and using a "pointer" to help guide the active player. "Eggs" are hidden on certain levels which are only accessible in multiplayer. Levels are made up of various cubes, some of which Ilo or Milo can pick up and carry in order to place elsewhere in the level, opening a path for the other to travel on. Different cubes have different effects, such as some which extend across gaps or some that allow Ilo or Milo to fall through and end up on the other side. There are also carpets which allow characters to walk on different sides of the cubes and switches which activate bridges. Hidden throughout the levels are various fragments, which when collected piece together postcard memories, explaining some of the game's backstory. There also small creatures called Safkas hidden in each level, which unlock bonuses when collected. The levels that these safkas open contain a part of Sebastian's "The Huntsman and the Fox", levels with appearances from other games, and levels with re-skins of Ilo and Milo themselves. The characters that can be seen in the purple safka's levels are The Goo Balls from World of Goo, Victor Neff from "The Dream Machine", Meat Boy from Super Meat Boy, and Josef from Machinarium. Additional content is also available if the player owns A World of Keflings or Raskulls.
Plot
Ilo and Milo are two friends that meet daily for companionship inside a bizarre park in a strange world, populated by odd characters including other safkas, utilitarian lifeforms known as "cubes", and the haughty but helpful Sebastian, a small man wearing a bicorne and riding a flying beetle.
Each time Ilo and Milo leave for the night and return to each other in the day, the park becomes more and more complicated to navigate (in a reference to the game's levels and puzzle elements). After one meeting, Ilo and Milo become upset at the thought of leaving each other again, crying so heavily that the subsequent levels are played underwater. Later they each have an idea to draw maps for each other and hurl them about the park in hopes the other finds them, ironically making the park even more confusing to navigate. In the final chapter, Ilo and Milo resolve not to go home at nighttime, and instead search for the sun so that they may stay together. Becoming lost once again, they finally reunite at a vehicle that resembles a locomotive fused with a biplane, and depart from the park in it. Vowing never to separate again, they wander the world together. The 2019 Billie Eilish song "Ilomilo" was inspired by the game's themes and the relationship Ilo and Milo share.
The main story is allegorical for a brief subplot involving two human characters named "Ilona Zevon" and "Milton Foley"; the player receives snippets of the subplot (in the form of written letters) after collecting enough "Memory Fragments" found in the levels. In this subplot, Ilona and Milton write letters to each other frequently and desire to meet together at their favorite spots, including an unknown park and lake. Ilona eventually stops meeting with Milton and writing altogether; Milton persists in sending mail, only to have it returned from a "Dr. Jacob", who claims that Ilona no longer resides at the intended residence. Ilona is later revealed to have been barred from seeing Milton by "they". Milton reestablishes contact with Ilona and resumes their meetings, and Ilona acquires two tickets for an unknown night train, asking they "never turn back". The final snippet is a missing persons report for Ilona and Milton, dated November 29.