Outer Wilds Wiki
Hourglass Twins
Vital statistics
Type Planet
Inhabitants Astronomer
Location 1st Planet from Sun
Database Info: -Binary planets locked in a stable orbit

-Twin A: Desert plant life on surface. Extensive subterranean network detected -Twin B: No lifeforms detected. Extremely strong foreign technology readings below surface -Spontaneous sand transfer occurs once every 100 years. Geological mechanism unknown

The Hourglass Twins are two binary planets. One is mostly desert rock, the other is entirely made of sand. One minute into the game, the sand planet starts transferring sand to the rock planet.

They orbit very close to the Sun, and thus it is not recommended to use the autopilot as there is a large chance that it will try to fly through it. Both planets have several alien relics on them.


  • Currently placeholder text*


There are a few main sites: The Teleporter, the Probe Launchers, the Cryotube Pod, and the Sub-surface ruins.

The Teleporter is a relic buried under the sand that appears in regular intervals, seeming to rise out of the sand. After it has been fully uncovered it will teleport any players standing on it to another planet that has a similar construction. There are teleporters on Giant's Deep and Timber Hearth.

The Probe launchers are on the same planetoid as the Teleporter, and are fairly easy to notice. Other probe launchers can be found elsewhere.

The Cryotube Pod is one of three scattered around the solar system, each one holding dozens of empty pods. The one on the Hourglass Twins is located in a valley, and can be observed indirectly by its strobing green light. 

11030206942285922304 screenshots 2015-09-04 00002.jpg

Near the Cryotube Pod is a hole in the ground, which leads to a series of caverns that are open to exploration, eventually you may come across several rooms, each holding different items. These are the Sub-surface ruins. There is another set of sub surface ruins located beneath the traveller. There is a hole in the ground, leading to several caverns. At the end of the tunnel/cavern bit there are a few two inscriptions talking about the anglerfish on Dark Bramble. They reveal how the anglerfish have very acute hearing, but poor eyesight, and also express that they wished they had known that when they arrived. Underneath the canyon with the arches, there are 2 caverns for each direction. In one direction there are ruins, the tower ruin leads to a cave that leads under the red spot that looks like a teleporter. it contains inscriptions about the four towers on the other twin, which teleport you to the planets indicated by the drawings on the walls when aligned.

Sand Transfer

Over time, starting one minute into the game, sand will transfer from the sand planet to the rock planet, filling the insides (including the ruins) with sand. Like an hourglass, all the sand is on the sand planet at first, but transfers to the rock planet for 20 minutes. When the Sun goes supernova, all the sand is now on the rock planet.

Time Loop Device

The device that causes the time loop is located inside of Twin B. To access it you must wait for the sand levels to lower enough for the teleportation towers (It's the two that are very close together. They appear last) to appear. You will need to wait about 15 of the 20 minutes for the two towers to be revealed. Stand inside either of them and wait for Twin A to pass overhead. However, the sand column will try to pull you out of the tower so it is recommended that you stand under the lip of the tower so you can't be pulled out.  

The Time Loop Device without sand in the way.

Sun - Hourglass Twins - Timber Hearth / Moon - Brittle Hollow / Devil's Furnace
Giant's Deep - Dark Bramble - The Wanderer - Quantum Moon