Steal An Egg Angels vs Demons Update: Luminous Egg and New Biome

Steal An Egg’s fourth big content drop is live. Roblox lists it as Light vs Darkness, but most players are calling it by its in-game framing: Angels vs Demons. It adds eight new light and darkness animals to the map, a secret shrine, a fresh biome tacked onto the end of the track, and a limited-time Luminous Egg sitting in the Shop.

Quick answer: Run the full track past Prehistoric and through the portal to reach the new end-game biome, then open the Shop to buy the limited-time Luminous Egg, which starts at 80 Robux for a single egg.

Everything added in the Angels vs Demons update

The update touches the map, the Shop, and your base at the same time. Here is the full set of additions.

Addition	What it does
Light and darkness animals	Eight new animals spawn across the map
New biome	Sits at the very end of the track, past the portal
Secret shrine	A new hidden structure placed on the map
Luminous Egg	Limited-time Shop egg, from 80 Robux
Luminous Re-roll	Shop option tied to the Luminous Egg
Abyss Overlord	Boss fight with a 7,000 HP health bar
Treadmills and trails	New speed upgrades in the Shop
Bigger bases	Base upgrade that grants an extra pet slot

How to reach the new biome at the end of the track

The new area is not hidden behind a menu or a quest. It is simply further down the same track you already run, so the only real gate is Speed. Work through the existing zones in order and keep pushing forward past the last one.

Start a run from your base and head down the track through the early zones. Red arrows on the floor point the way forward, and the Slow Mode toggle on screen is useful if your Speed is high enough that you are overshooting eggs.

Player running through the Forest zone with the green Slow Mode control switched on — Slow Mode active in the Forest zone at the start of a run.

Keep going through Lake, Desert, Jungle, Snow, and Volcano. These are unchanged, but the eight new light and darkness animals spawn across the map, so you may see unfamiliar guardians sitting on eggs in zones you already know well.

Push through Abyss Ocean and then Prehistoric. This is where most players stall, because the guardians here catch you easily if your Speed is not high enough to clear the run.

The late-track stretch leading toward the portal.

Take the portal at the end of the Prehistoric stretch. That drops you into the new biome, which is now the deepest point on the map. The secret shrine is also out here on the route, so scan the sides of the track rather than sprinting straight through.

Running forward on the track with the Shop and Index buttons visible on the left side of the screen — Shop and Index sit on the left edge of the screen during a run.

Note: if your Speed is short, liking the experience, favoriting it, and joining the community group still hands you 10,000 free Speed. It is a small boost at the top end, but newer accounts should not leave it on the table. You can grab both from the Steal An Egg game page.

Luminous Egg price and how long it stays in the Shop

The Luminous Egg is the update’s headline Shop item and it is Robux-only. Open the Shop from the left side of the screen and it appears near the top with its own countdown, which ran to just under 14 days at launch. Once that timer expires, the egg leaves the Shop.

The Shop button on the left panel opens the Luminous Egg listing.

Shop tier	Robux
Single Luminous Egg	80
Second bundle	240
Third bundle	640
Largest bundle	2,800

A Luminous Re-roll option sits alongside the egg in the same Shop panel. The Shop also carries the new treadmills and trails from this update, so it is worth checking the full list before spending, since a trail upgrade converts directly into the Speed you need for the new biome.

Abyss Overlord boss arena and its 7,000 HP bar

The Abyss Overlord fight is still running in this update. Entering the arena puts a boss health bar across the top of the screen showing progress against a 7,000 HP pool, shared by everyone in the server. Servers cap at seven players, so damage output is limited and the fight is a group effort rather than something you finish alone.

Player standing in the arena with the Shop button and Index tab still on screen — The arena view, with Index available for checking collected pets.

Base upgrade adds an extra pet slot

Bigger bases are part of this update, and the practical effect is one more pet slot. That matters more than it sounds, because pet income is what funds treadmill and trail upgrades. If your pen is full of low earners, sell or fuse them before you start hatching anything from the new biome, or you will have nowhere to put the good pulls.

Egg behaviour has not changed. Eggs still reset across the map every five minutes, with a short night phase during which all eggs grow up to 30 times faster. High-rarity spawns are still announced server-wide with their name and location.

When the Light vs Darkness update went live

Steal An Egg follows a weekly Saturday cadence. An Admin Abuse window runs first, lasting 30 to 60 minutes with boosted egg spawns, Speed multipliers, and free items handed out by the developers, and the update goes live immediately afterwards. The most recent Admin Abuse ran on Saturday, September 12, starting at 8:00AM PT / 11:00AM ET / 3:00PM UK, with Light vs Darkness following straight on.

The Roblox event listing for Light vs Darkness runs from 3:00PM on Saturday, September 12 through 3:00PM on Sunday, September 13. No official date has been confirmed yet for the next update after this one.

You will know the update has loaded properly when the Luminous Egg appears in the Shop with its countdown attached and the new treadmill and trail entries show up in the same menu. If the Shop still looks the same, rejoin the experience — Steal An Egg pushes server updates gradually, and an older server can keep running the previous version until it cycles.