Is Eon of the Green: Area Delta (Prologue) free?

Yes — Eon of the Green: Area Delta (Prologue) is free to play, so you can install and play it without buying anything.

Is Eon of the Green: Area Delta (Prologue) Steam Deck compatible?

Mostly. Valve rates Eon of the Green: Area Delta (Prologue) Playable on Steam Deck: it runs, but may need some manual tweaking — a community controller layout, or zooming in on small text.

Can I play Eon of the Green: Area Delta (Prologue) on Mac?

Yes. Eon of the Green: Area Delta (Prologue) has a native macOS version on Steam.

Is Eon of the Green: Area Delta (Prologue) multiplayer?

No — Steam lists Eon of the Green: Area Delta (Prologue) as single-player only.

Is Eon of the Green: Area Delta (Prologue) on PC Game Pass?

No — Eon of the Green: Area Delta (Prologue) is not on PC Game Pass right now.

Eon of the Green: Area Delta (Prologue)

Name: Eon of the Green: Area Delta (Prologue)
Brand: Drifted Matter
Availability: InStock

Drifted Matter · January 25, 2023 · Dialogue Heavy, Time Travel, Dystopian , Choices Matter, Sci-fi

Eon of the Green: Area Delta (Prologue) is free to play — no purchase needed. We track it so you know if that ever changes.

Positive85% · 34

Best price

Free

Get it free on Steam

This game is free to play. Get it on Steam →

Screenshots

Eon of the Green: Area Delta (Prologue) price

Eon of the Green: Area Delta (Prologue) is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Eon of the Green: Area Delta (Prologue)

WARNING: The game's cutscenes potentially trigger seizures for people with photosensitive epilepsy.

After a dramatic failure of an undercover mission you become part of the top secret Klaassen Project. You are still unsettled by your past and wary about the intentions of your superiors.

Recurring transmissions take you to Earth in 1 billion years. See breathtaking things and gain the knowledge for your research. You have to find out how life deals with the deadly power of the Sun. Your task is risky though. Can you deal with its stresses and strains?

Discuss the weird future lifeforms with your assistant, Agent C. Show what you have learned during the transmissions. Along the way you carve out a unique relationship with her. You have to win her trust but keep up your autonomy at the same time. Both stats will be constantly modified by your answers and checks on them can be passed or failed. At crucial points a failed check means the end of your mission.

Agent C wants you to take a psyche test to evaluate your qualities as a researcher. Are you willing to share your true self? It might be risky to fully open up. At the same time, you might be caught lying if you don't.

Learn about Arthur Klaassen, the discoverer of Eon of the Green. Agent C will share parts of his diary with you. Haven't you heard of him before? Pay close attention to find out more about the complexities of the Klaassen Project.

Key Features:

unique game loop of text-based interaction and visuals
25k+ words of interactive fiction
hints to the consequences of your choices allow for a tactical approach
experimental CGI cut scenes with sound, simulating mental time travel
several musical themes to enhance the game's atmosphere

Eon of the Green: Area Delta (Prologue) — game info

Platforms: Windows, macOS
Steam Deck: Playable
Player modes: Single-player
PC Game Pass: Not included

More games like this:Mac games

Eon of the Green: Area Delta (Prologue) — questions & answers

Is Eon of the Green: Area Delta (Prologue) free?: Yes — Eon of the Green: Area Delta (Prologue) is free to play, so you can install and play it without buying anything.
Is Eon of the Green: Area Delta (Prologue) Steam Deck compatible?: Mostly. Valve rates Eon of the Green: Area Delta (Prologue) Playable on Steam Deck: it runs, but may need some manual tweaking — a community controller layout, or zooming in on small text.
Can I play Eon of the Green: Area Delta (Prologue) on Mac?: Yes. Eon of the Green: Area Delta (Prologue) has a native macOS version on Steam.
Is Eon of the Green: Area Delta (Prologue) multiplayer?: No — Steam lists Eon of the Green: Area Delta (Prologue) as single-player only.
Is Eon of the Green: Area Delta (Prologue) on PC Game Pass?: No — Eon of the Green: Area Delta (Prologue) is not on PC Game Pass right now.

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Mar 9, 2024

⠀

10 found this helpful

Recommended Apr 1, 2026

great

1 found this helpful

Not recommended Dec 22, 2024

"Eon of the Green: Area Delta (Prologue)" is not a game. It's an advertisement for a product called "Eon of the Green". Eon of the Green is not even fully published, making this an advert for nothing. The idea behind the product this would be advertising if they ever made it would be a conceptual bit of game design, a somewhat interactive "visual novel" experience with CGI cutscenes and lightweight RPG stats that has you mentally explore the brains of things in the future... that's probably a bit too sci-fi even for Steam. But this isn't completely relevant because this is not Eon of the Green, it's just an advertisment for it, so it's not correct to try to review that completely distinct product. We must instead review this for what it is... an advertisement. If you enjoy advertisements, you can consume them for free on the web or on Youtube without needing to add them to your game library, download them, and then launch the advertising. It's impossible in a general sense to recommend people should do that over playing real, full games on Steam, and that applies here with "Eon of the Green: Area Delta (Prologue)" too. This is only free in the same way that adverts on Yout…

1 found this helpful

Recommended Apr 12, 2026

nice

Not recommended Jul 13, 2024

So I haven't gotten far, but this is a game genre i have yet to play and, now that i have, it is dull. The games story was going somewhere but, instead of trying to get the player interested/hooked in, it only have you small clips of mysterious abstract simulations that stupify you in wanting to know more about it. This game bored me and i would rather play something else.

Recommended Apr 12, 2024

‎

Community reviews

—

0 reviews

No reviews yet. Be the first to review this game.

More like Eon of the Green: Area Delta (Prologue)

News

All news →

Deals

Hogwarts Legacy price history: where the floor really is

Our Hogwarts Legacy price history runs to 100 daily readings and a $3.99 median. Why the sub-dollar figure in search results is noise, and what to actually pay.

Oct 15, 2026

Enshrouded price after 1.0: what it costs now

Enshrouded hit 1.0 today, but the Enshrouded price rose on 8 September and the key resellers have not followed. What our nine tracked sellers show, and whether to buy now.

Oct 15, 2026

Starfield price history: the sub-$20 window, and who set it

Our Starfield price history shows one reseller set the all-time low over five weeks in late summer 2026. What a good price looks like now, and why Game Pass comes first.

Oct 14, 2026

Boltgun 2 price: buy the sequel, or the cheap first game?

The Boltgun 2 price has no cheaper route on launch day — our record shows one listing, unmoved since September. The first game is the bargain, but a smaller one than it was.

Oct 14, 2026

Rust price: why the cheap keys vanished, and when to buy

The Rust price has two answers: an official one that barely moves, and a reseller one that sat in single digits for 95 days and then disappeared. Our record shows both.

Oct 13, 2026

Planet Zoo 2 price: which edition, and when it gets cheaper

Planet Zoo 2 is out today. The Planet Zoo 2 price splits two ways, the cheap pre-order keys stopped existing three weeks ago, and the original got dearer as the sequel landed.

Oct 13, 2026

Deals

Steam Black Friday sale 2026: there isn't one. Buy or wait?

There is no Steam Black Friday sale in 2026. Last year, the first in years without one, 42% of popular games were discounted on Steam anyway and the Black Friday price beat the Winter Sale for 47%.

Oct 12, 2026

Deals

Games that never go on sale on Steam, and the ones that barely do

We checked Steam's full price history for 590 popular games. Only three have never been discounted, one by policy. These are the games that never go on sale, the ones that barely do, and the 122 that got pricier.

Oct 12, 2026