Invention 4
Offers
Trailers & screenshots
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About Invention 4
Invention 4 is a 3D shooter with quest and puzzle elements, set in 2043 after a zombie virus drives humanity into basements, where people face hunger and disease. You play as mercenary Dorian Stealth, tasked with rescuing young hacker Cassie Jefferson and delivering her to the Investment Corp. Together, they face challenges and push through crowds of zombies.
Weapons
Dorian carries a knife, shotgun, grenade launcher and Kalashnikov. Each weapon has different strengths: the knife is effective at close range, while the shotgun works at medium range but needs reloading. The grenade launcher creates a large explosion that can hit multiple enemies at once, and the machine gun is versatile but has extremely limited ammunition.
Enemies
Use the weapons’ strengths to fight hordes of monsters and bosses.
Frequently asked questions
The best price for Invention 4 is $1.11 at Kinguin. That is 72% less than on Steam, where it costs $3.99. 2 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Invention 4 stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Invention 4 are: Windows 10, GeForce GTX 1660 Ti, Intel Core i3-10100, 7.8 GB RAM, 2 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Invention 4 is a single-player game.
Yes. Invention 4 is the full base game. You need nothing else to play it.
Buy Invention 4 72% cheaper than on Steam.
Invention 4 is available for 72% less in shops such as Kinguin.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.
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