How to get free Steam keys?

To get free Steam keys, simply visit the site Validcdkeys.com and choose the game for which you want the key. Download the key and redeem it on your Steam client to get the game. There's no need to register, no hidden fees, and no membership fees, allowing you to play instantly.

Are Steam keys legal?

Yes. A Steam key is proof that one has the right to download the game from the Steam platform. After redeeming the key, that item is yours forever. Digital goods/codes require no plastic or physical box, and we believe that to be a positive step in the gaming world.

What is a Steam CD Key?

The CD key (Steam Key) is the digital combination of 15 numbers and letters that certifies that the copy of the game is original. When you redeem the key on the Steam client, you can download the game, and it's yours forever. Activated keys can not be reversed or reactivated.

Is ValidCDKeys legal?

Yes. Validcdkeys.com was created with incredible passion to provide free Steam keys for everybody. The site is safe to use, and it is SSL-protected. No hidden fees. No membership fees.

How long is a Steam key valid?

Steam CD Keys can last forever, which means until you activate the key. The key cannot expire or be destroyed. So keep it safe, write it so you can't forget them.

Home /
Indie

Oxygen Not Included

Free

This is a digital key that allows you to download Oxygen Not Included directly to PC from the official platform Steam.

Get It Free

5/5 Votes: 1,688

Report

Publisher
Klei EntertainmentPlayable on
STEAMRelease date
30 Jul, 2019Promoted offer
FreeRegion
GlobalBuy CD Key

Report this game

Screenshots

Info

Download the free Oxygen Not Included CD key for PC Windows! The CD key is a digital combination of 15 letters and numbers that replaces the need for a physical disc and is used to activate a video game on the Steam platform. Enjoy using our service for free Steam keys.

Oxygen Not Included is a space-colony simulation game. Deep inside an alien space rock your industrious crew will need to master science, overcome strange new lifeforms, and harness incredible space tech to survive, and possibly, thrive.

How Is This Possible? The Truth Behind Free Steam Keys

You’re probably wondering: “How can I get free Steam keys?”
The answer is simple — smart marketing.

Many game developers, sponsors, and digital retailers use free game key giveaways as a powerful marketing tool. It’s a fast and effective way to build communities, increase website traffic, and promote new games.

🧠 A Win-Win for Everyone

You get free access to premium Steam games
Sponsors gain exposure, brand awareness, and a loyal audience
Everyone benefits from the power of sharing and engagement

This strategy allows gaming companies and partners to connect directly with players, while you get to enjoy games without spending a dime.

🎮 Why Pay When You Can Play for Free?

Don’t waste money when you can expand your game library for zero cost.
Start claiming free Steam keys today and enjoy instant access to top PC titles.

Explore:

🎁 100% Free and Legit Game Codes
🌍 Region-Free Steam Keys
🔥 The Best Steam Deals and Promotions
💸 No Credit Card Required

Whether you’re a casual gamer or a hardcore collector, there’s no better time to build your collection.
Play more. Pay less. Win big.

System Requirements

Minimum:

- Requires a 64-bit processor and operating system
- OS *: Windows 7 (64 bit)
- Processor: Dual Core 2 GHz
- Memory: 4 GB RAM
- Graphics: Intel HD 4600 (AMD or NVIDIA equivalent)
- DirectX: Version 11
- Storage: 2 GB available space