Angels & Demons is the zone that changes with the night. It arrived with Update 4 ("Angels vs Demons"), it asks for 20B Speed, and every night it turns into either an Angel zone or a Demon zone, each with its own 8 pets to steal. This guide lays out all 16 pets side by side, shows what the wiki says about each night, and explains what else Update 4 added.

Angels & Demons at a glance
The wiki describes the zone as one that "transforms every night", shifting between an Angel theme and a Demon theme. Each theme has 8 pets, so the zone holds 16 stealable pets. The wiki's chip says 18 pets because it also counts the two fusion pets from the Secret Shrine, Equinox and Aetheron.
| Fact | Detail |
|---|---|
| Update | Update 4, "Angels vs Demons" |
| Speed required | 20,000,000,000 (20B) |
| Pets to steal | 8 Light pets or 8 Darkness pets, depending on the night |
| Rare extra | A secret Merged form that mixes both sides and gives extra luck while it lasts |
| Fusion pets | Equinox and Aetheron, made at the Secret Shrine |
The zone sits right after the other late biomes. For the full list of Speed requirements, see the biomes page, and for how to climb there, read our speed guide.

The 8 Light pets
On an Angel night the zone is bright and the Light animals appear. They go from Legendary all the way up to Divine.
| Pet | Rarity | Base income |
|---|---|---|
| Light Dove | Legendary | $225K/s |
| Winged Lamb | Mythic | $1.25M/s |
| Sacred Moth | Cosmic | $16M/s |
| Holy Peacock | Cosmic | $25M/s |
| Pure Jellyfish | Secret | $225M/s |
| Centaur | Secret | $350M/s |
| Pegasus | Eternal | $1.3B/s |
| ArchAngel | Divine | $5B/s |
The top of the Light side is ArchAngel, the Divine pet at $5B/s. Pegasus is the Eternal pet at $1.3B/s, and the two Secret pets, Pure Jellyfish and Centaur, pay $225M/s and $350M/s.

The 8 Darkness pets
On a Demon night the zone turns dark and the Darkness animals take over. They match the Light side one for one.
| Pet | Rarity | Base income |
|---|---|---|
| Flame Sprite | Legendary | $225K/s |
| Toro | Mythic | $1.25M/s |
| Imp | Cosmic | $16M/s |
| Demon Hound | Cosmic | $25M/s |
| Gargoyle | Secret | $225M/s |
| RazorFang | Secret | $350M/s |
| Skeleton Horse | Eternal | $1.3B/s |
| World Burner | Divine | $5B/s |
World Burner is the Divine Darkness pet at $5B/s, and Skeleton Horse is the Eternal one at $1.3B/s.

Light vs Darkness: the same money at every rarity
Put the two sides next to each other and a pattern shows up. Every Light pet has a Darkness partner of the same rarity, and the base incomes line up:
| Rarity | Light pet | Light income | Darkness pet | Darkness income |
|---|---|---|---|---|
| Legendary | Light Dove | $225K/s | Flame Sprite | $225K/s |
| Mythic | Winged Lamb | $1.25M/s | Toro | $1.25M/s |
| Cosmic | Sacred Moth | $16M/s | Imp | $16M/s |
| Cosmic | Holy Peacock | $25M/s | Demon Hound | $25M/s |
| Secret | Pure Jellyfish | $225M/s | Gargoyle | $225M/s |
| Secret | Centaur | $350M/s | RazorFang | $350M/s |
| Eternal | Pegasus | $1.3B/s | Skeleton Horse | $1.3B/s |
| Divine | ArchAngel | $5B/s | World Burner | $5B/s |
So the night you get does not change how much money a pet pays. It changes which pets you can steal. If you want a Darkness pet and it is an Angel night, you wait for the zone to flip.
Which side is better to farm?
Because base incomes match, the choice comes down to what you want:
- You want to fuse. The Secret Shrine needs one Light pet and its Darkness partner of the same rarity. Pegasus plus Skeleton Horse makes Equinox, and ArchAngel plus World Burner makes Aetheron. You need both nights. Our Secret Shrine guide has the recipes and the income math.
- You want the best reward from an egg. The wiki lists egg rewards in Speed and cash for some of these pets. Pegasus gives +200m Speed and $140b, while Skeleton Horse gives +200M Speed and $130B. The difference is small.
- You want a cheap start. The Legendary pets, Light Dove and Flame Sprite, both list $225K/s and a 5 minute grow time, so they are the easy entry on either night.
Egg weight: why the big ones are slow
Eggs carry weight, and heavy eggs slow you down. The wiki weights for this zone show how steep it gets: the Legendary pets weigh 45,000, the Mythic pets 72,000, the Cosmic pets 9,000, the Secret pets 10,000 to 12,000, and the Eternal and Divine pets 65,000 and 120,000. A Divine egg is far heavier than a Secret one, so plan your route and your base before you grab it. Our beginner guide explains why bigger eggs pay more but slow you down.
The Merged biome
The wiki notes there is a rare chance for a secret Merged biome to appear. It combines Angels and Demons and gives extra luck while it is active. The wiki does not give a percentage or a schedule, so treat it as a bonus you may bump into. If you are in the zone when it happens, it is a good time to steal.
The other things Update 4 added
Update 4 was not only a biome. The patch notes list four more changes:
- 1The Luminous Egg. It replaced the Monster Egg. Like the Monster Egg, it has a rare chance to re-roll into a Luminous variant of the animal. See our special eggs guide.
- 2A new Treadmill and Trail tier. More Speed per step, which helps you afford the next biome.
- 3A bigger base. A new Base Upgrade lets you equip +1 more pet.
- 4The Secret Shrine. Hidden inside the biome, and the way to craft the two fusion pets.
The Demons "have been whispering" about the shrine, according to the notes, and the wiki does not say where it is. We do not guess its location.
A simple plan for your first nights
- 1Reach 20B Speed. The zone is closed until you do.
- 2Check the night. Light or Darkness decides which 8 pets appear.
- 3Steal a cheap pet first, like Light Dove or Flame Sprite, to learn the layout.
- 4Save the heavy Eternal and Divine eggs for when your base has room.
- 5If you want Equinox or Aetheron, collect both partners across a Light night and a Darkness night.

FAQ
How much Speed do you need for Angels & Demons?
20B (20,000,000,000) Speed.
What changes every night in Angels & Demons?
The zone switches between an Angel theme and a Demon theme. Each has 8 pets to steal.
Do Light and Darkness pets pay the same?
Yes. Each Light pet has a Darkness partner of the same rarity, and the base incomes match in the wiki tables.
What is the Merged biome?
A rare secret form that mixes Angels and Demons and gives extra luck while it is active. The wiki gives no chance or schedule.
What replaced the Monster Egg in Update 4?
The Luminous Egg. It has a rare chance to re-roll into a Luminous variant.
Facts here come from the Steal an Egg Fandom wiki. Our site is built from scraped wiki data and written by AI; we do not claim in-game testing.


