Compare Invention 3 prices across trusted key stores and find the best deal. Developed by Falco Software. Published by Conglomerate 5. Released on 1/24/2022. Available on PC. Genres: Action, Adventure, Indie.

A sub-dollar first-person zombie shooter with roughly 70 Steam reviews split right down the middle. Honest expectations are half the battle here.

I want to be upfront about what Invention 3 is, because the gap between what it costs and what it delivers is the whole story. Falco Software is a prolific Russian indie studio that has shipped dozens of small, low-budget PC titles over the years, built on their own Falco Engine. This is one of those titles. A first-person shooter set in a post-apocalyptic urban environment, you move through zombie-infested streets and corridors, scavenging weapons, ammo, and first-aid kits while keeping the undead at arm's length. The loop is about as stripped down as the genre gets: see zombie, shoot zombie, find the next safe zone, repeat. The core mechanical ask is simple but not entirely without texture. The zombies here are notably fast and aggressive, which pushes the pacing closer to a frantic arcade shooter than a slow survival crawl. You are not crouching in shadows rationing bullets. You are moving, turning corners, and making quick decisions about which weapon you have time to reload. The level design is linear, and there is no pretense otherwise. Exploration is gated to scanning nearby rooms for pickups rather than any open-world wandering. The original Invention game established the franchise's DNA as a first-person shooter with a science lab backdrop, and this third entry stays very close to those roots. Where honesty compels me to pump the brakes: this is a micro-budget production with all that implies. The approximately 70 Steam reviews that do exist land around 69-70 percent positive, which is not a condemnation but also not a ringing endorsement. Players who go in expecting anything approaching a polished mainstream FPS will walk away dissatisfied. The graphical presentation is functional rather than atmospheric. There is no real narrative weight, no memorable setpiece, no audio design that lingers after you close the window. Falco's engine handles the basics competently, but there is a ceiling here and the game brushes it quickly. Who is this actually for? Budget-hunters who want something disposable to play for an hour or two without any investment of thought. Completionists working through the Conglomerate 5 catalogue on Steam. People who have a soft spot for scrappy Eastern European indie shooters with no pretension whatsoever. If you belong to any of those groups and calibrate expectations accordingly, Invention 3 delivers exactly the low-friction zombie shooting it promises and nothing more. That is, genuinely, its best quality: it does not lie to you. Kai, Scout Team

Invention 3

Invention 3

Jan 24, 2022Falco SoftwareConglomerate 5
GamerScout Says

A sub-dollar first-person zombie shooter with roughly 70 Steam reviews split right down the middle. Honest expectations are half the battle here.

PC
Best Price Available
€0.72-86%
at Steam
Lowest tracked: €0.72
Track this price

GamerScout Verdict

Worth a glance only if your expectations are calibrated to a throwaway arcade FPS and your wallet is basically empty.

Compare Prices(5 stores)

SteamBest price
StandardEurope (EU)Steam KeyKey
€0.72-86%
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€0.93
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€1.46-19%
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€2.09
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€2.11
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€2.47
Priced in EUR by the store
Buy

Every store in this table quotes us in euros, so the EUR figure is the price the seller actually set, not our arithmetic — which is why EUR is also the currency we rank in. We only list an offer here when the store gives us its price in euros, so nothing in this table is a number we invented.

Pick USD, PLN, GBP, CAD or AUD in the header and we convert from EUR at the European Central Bank reference rate — converted amounts are prefixed with ~. Your bank or the store may apply a different rate at checkout. We never hide offers based on where you are: everyone sees this whole table.

We may earn a commission when you buy games through links on this page — at no extra cost to you. It never affects our rankings or verdicts.

Price History

Lowest tracked
€0.721 Sept 2026
Current best
€0.72
Lowest since we started tracking
Official storesKeyshops
€0.55€1.13€1.70€2.287 Jun30 Jun22 Jul14 Aug5 Sept
7 Jun — 5 Sept
Create alert

Screenshots & Media

About Invention 3

I want to be upfront about what Invention 3 is, because the gap between what it costs and what it delivers is the whole story. Falco Software is a prolific Russian indie studio that has shipped dozens of small, low-budget PC titles over the years, built on their own Falco Engine. This is one of those titles. A first-person shooter set in a post-apocalyptic urban environment, you move through zombie-infested streets and corridors, scavenging weapons, ammo, and first-aid kits while keeping the undead at arm's length. The loop is about as stripped down as the genre gets: see zombie, shoot zombie, find the next safe zone, repeat. The core mechanical ask is simple but not entirely without texture. The zombies here are notably fast and aggressive, which pushes the pacing closer to a frantic arcade shooter than a slow survival crawl. You are not crouching in shadows rationing bullets. You are moving, turning corners, and making quick decisions about which weapon you have time to reload. The level design is linear, and there is no pretense otherwise. Exploration is gated to scanning nearby rooms for pickups rather than any open-world wandering. The original Invention game established the franchise's DNA as a first-person shooter with a science lab backdrop, and this third entry stays very close to those roots. Where honesty compels me to pump the brakes: this is a micro-budget production with all that implies. The approximately 70 Steam reviews that do exist land around 69-70 percent positive, which is not a condemnation but also not a ringing endorsement. Players who go in expecting anything approaching a polished mainstream FPS will walk away dissatisfied. The graphical presentation is functional rather than atmospheric. There is no real narrative weight, no memorable setpiece, no audio design that lingers after you close the window. Falco's engine handles the basics competently, but there is a ceiling here and the game brushes it quickly. Who is this actually for? Budget-hunters who want something disposable to play for an hour or two without any investment of thought. Completionists working through the Conglomerate 5 catalogue on Steam. People who have a soft spot for scrappy Eastern European indie shooters with no pretension whatsoever. If you belong to any of those groups and calibrate expectations accordingly, Invention 3 delivers exactly the low-friction zombie shooting it promises and nothing more. That is, genuinely, its best quality: it does not lie to you.

Kai
Kai · Scout Team

Indie & narrative

Tags

singleplayertier:sub-5Micro-BudgetLinear Level DesignArcade FPSFast ZombiesScavengingPost-Apocalyptic FPSShort Session

System Requirements

Minimum

OS
Windows 7
Memory
4 GB RAM
DirectX
Version 9.0
Storage
3 GB available space
Graphics
Nvidia GTX 750
Processor
Intel Core 2 Duo E6300

Keep exploring

Community Discussion

Be the first to comment on Invention 3.

Reviews & Ratings

No ratings available

Game Info

Developer
Falco Software
Publisher
Conglomerate 5
Release Date
Jan 24, 2022

Price Alert

Get notified when the price drops below your target!

Create Alert
Best price€0.72
See offer

Across the 24,265 games we track, a verified key was cheaper than the official store 90% of the time. See the method and the full numbers in our game price report.

No card? Pay another way

Top up your Steam Wallet or buy crypto with any card — instant delivery, no bank account needed.

More from Falco Software

Buy smarter: helpful guides

Frequently asked questions about Invention 3

How much does Invention 3 cost?

As of 5 September 2026, the cheapest in-stock offer for Invention 3 is €0.72 at Steam, out of 6 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy Invention 3 cheapest?

The lowest in-stock price we track for Invention 3 is €0.72 at Steam (5 September 2026). We compare 6 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is Invention 3 available on?

Invention 3 is available on PC.

When was Invention 3 released?

Invention 3 was released on 24 January 2022.

Who developed Invention 3?

Invention 3 was developed by Falco Software and published by Conglomerate 5.