What is the cheapest place to buy Systematic Immunity?

Gameseal at $0.65 — the lowest of the 4 stores we compare for your region. Gameseal is a keyshop: it resells keys, which can be region-locked or a different edition. The cheapest official store is Steam at $3.99. Prices update through the day, so check the table above before buying.

Is Systematic Immunity free?

No — Systematic Immunity is a paid game. The cheapest we can find it is $0.65.

Has Systematic Immunity ever been cheaper?

Yes — the lowest we have tracked since we started tracking it in June 2026 is $0.58. It is $0.65 today.

Can I play Systematic Immunity on Mac?

Not natively — Steam lists no macOS version of Systematic Immunity. Mac players would need a cloud gaming service or a Windows compatibility layer.

Is Systematic Immunity multiplayer?

No — Steam lists Systematic Immunity as single-player only.

Is Systematic Immunity on PC Game Pass?

No — Systematic Immunity is not on PC Game Pass right now. The best price to buy it right now is $0.65.

Systematic Immunity

Name: Systematic Immunity
Brand: Hedge Knight Games
Availability: InStock

Hedge Knight Games · May 20, 2016 · Action, Indie, Adventure, Platformer

Buy Systematic Immunity from Gameseal at $0.65 — the cheapest of 4 stores we compare.

Action deals Adventure deals Indie deals Platformer deals

Positive81% · 27 📉 Recent reviews down 71%

Best price

66 Great deal

$0.65-84%

lowest tracked $0.58

Buy at Gameseal

Prices last checked 29 Sep 2026, 06:25 UTC

More games under $5 →

Where to buy Systematic Immunity — official stores

Steam

Standard Edition · Steam

$3.99

Buy

Cheapest Systematic Immunity keys — keyshops

Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.

Gameseal

Standard Edition · Steam

$0.65

Buy

Eneba

Standard Edition · Steam

$0.95

Buy

CJS CD Keys

Standard Edition · Steam

$1.82

Buy

Systematic Immunity price by region

Systematic Immunity costs £0.46 in the United Kingdom, €0.52 in Europe (EUR), $0.65 in the United States, zł2.88 in Poland, $3.99 in Georgia (USD), CA$4.99 in Canada, A$5.95 in Australia, NZ$5.99 in New Zealand and R$13.79 in Brazil right now.

Cheapest Systematic Immunity offer in each region, in local currency
Region	Best price	Official store	Key shop	Stores
United Kingdom	£0.46 −86%	£3.39	£0.46	3
Europe (EUR)	€0.52 −87%	€3.99	€0.52	4
United Statesyour region	$0.65 −84%	$3.99	$0.65	4
Poland	zł2.88 −84%	zł17.99	zł2.88	2
Georgia (USD)	$3.99	$3.99	—	1
Canada	CA$4.99	CA$4.99	—	1
Australia	A$5.95	A$5.95	—	1
New Zealand	NZ$5.99	NZ$5.99	—	1
Brazil	R$13.79	R$13.79	—	1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About Systematic Immunity

Systematic Immunity is a challenging precision platformer set inside the human body...and not a particularly healthy one either. This body has been infected by a big, nasty bugger of a germ, who is making it his business to spawn many more germs as fast as he can. You and your mob of 20 white blood cells must put a stop to his shenanigans at all costs!

Use all your skills to run, jump, roll, float, bounce and teleport your way through the inhospitable tissue of your host human. But remember, each white cell can only kill one germ. So watch out for casualties!

Key Features

Control your cells using the keyboard or XBox 360/One controller
Play through 75 levels spread through 3 organs
Defeat boss germs in each organ
Collect info snippets about the human immune system and biology
Unlock extra levels with their own collectible info snippets
Create your own levels to play and share

Systematic Immunity — game info

Platforms: Windows
Player modes: Single-player
Controller: Full controller support
PC Game Pass: Not included

More games like this:Games with full controller support

Price alert

Get notified the moment the price hits your target.

Systematic Immunity price history

Systematic Immunity is $0.65 at Gameseal right now, compared across 4 stores. The lowest we have tracked is $0.58.

2026-06-18low $0.58 · now $0.65

Fair price — It's close to its usual sale price.

Systematic Immunity price changes · tracked since 18 Jun 2026
Date	Price	Store
29 Sep 2026	$0.65 ▼	Gameseal
28 Sep 2026	$0.96 ▲	Eneba
22 Sep 2026	$0.65 ▼	Gameseal
29 Aug 2026	$0.66 ▼	Gameseal
20 Aug 2026	$0.67 ▲	Gameseal
1 Aug 2026	$0.66 ▼	Gameseal
31 Jul 2026	$0.78 ▲	—
28 Jul 2026	$0.77 ▲	—
23 Jul 2026	$0.75 ▲	—
21 Jul 2026	$0.74 ▲	—
27 Jun 2026	$0.71 ▲	—
25 Jun 2026	$0.70 ▼	—

Embed this price on your site

A live price and history chart for Systematic Immunity, updating on its own. Free to use anywhere — it carries a link back here and needs nothing else.

Systematic Immunity — questions & answers

What is the cheapest place to buy Systematic Immunity?: Gameseal at $0.65 — the lowest of the 4 stores we compare for your region. Gameseal is a keyshop: it resells keys, which can be region-locked or a different edition. The cheapest official store is Steam at $3.99. Prices update through the day, so check the table above before buying.
Is Systematic Immunity free?: No — Systematic Immunity is a paid game. The cheapest we can find it is $0.65.
Has Systematic Immunity ever been cheaper?: Yes — the lowest we have tracked since we started tracking it in June 2026 is $0.58. It is $0.65 today.
Is Systematic Immunity worth buying now?: Fair price. It's close to its usual sale price.
Can I play Systematic Immunity on Mac?: Not natively — Steam lists no macOS version of Systematic Immunity. Mac players would need a cloud gaming service or a Windows compatibility layer.
Is Systematic Immunity multiplayer?: No — Steam lists Systematic Immunity as single-player only.
Is Systematic Immunity on PC Game Pass?: No — Systematic Immunity is not on PC Game Pass right now. The best price to buy it right now is $0.65.

DLC & expansions

🎁 Complete the collection

Base game + 1 of 1 DLC at today's best prices.

$1.64

to own everything

Systematic Immunity OST

from$0.99

lowest tracked $0.49

What Steam players say

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

Recommended Dec 11, 2024

⣿⣿⡻⠿⣳⠸⢿⡇⢇⣿⡧⢹⠿⣿⣿⣿⣿⣾⣿⡇⣿⣿⣿⣿⡿⡐⣯⠁ ⠄⠄ ⠟⣛⣽⡳⠼⠄⠈⣷⡾⣥⣱⠃⠣⣿⣿⣿⣯⣭⠽⡇⣿⣿⣿⣿⣟⢢⠏⠄ ⠄ ⢠⡿⠶⣮⣝⣿⠄⠄⠈⡥⢭⣥⠅⢌⣽⣿⣻⢶⣭⡿⠿⠜⢿⣿⣿⡿⠁⠄⠄ ⠄⣼⣧⠤⢌⣭⡇⠄⠄⠄⠭⠭⠭⠯⠴⣚⣉⣛⡢⠭⠵⢶⣾⣦⡍⠁⠄⠄⠄⠄ ⠄⣿⣷⣯⣭⡷⠄⠄⢀⣀⠩⠍⢉⣛⣛⠫⢏⣈⣭⣥⣶⣶⣦⣭⣛⠄⠄⠄⠄⠄ ⢀⣿⣿⣿⡿⠃⢀⣴⣿⣿⣿⣎⢩⠌⣡⣶⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣆⠄⠄⠄ ⢸⡿⢟⣽⠎⣰⣿⣿⣿⣿⣿⣿⢀⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣦⠄⠄ ⣰⠯⣾⢅⣼⣿⣿⣿⣿⣿⣿⡇⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡄⠄ ⢰⣄⡉⣼⣿⣿⣿⣿⣿⣿⣿⢸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣧⠄ ⢯⣌⢹⣿⣿⣿⣿⣿⣿⣿⣿⢸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠄ ⢸⣇⣽⣿⣿⣿⣿⣿⣿⣿⣿⠸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠄ ⢸⣟⣧⡻⣿⣿⣿⣿⣿⣿⣿⣧⡻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠄ ⠈⢹⡧⣿⣸⠿⢿⣿⣿⣿⣿⡿⠗⣈⠻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡇⠄ ⠄⠘⢷⡳⣾⣷⣶⣶⣶⣶⣶⣾⣿⣿⢀⣶⣶⣶⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⠇⠄ ⠄⠄⠈⣵⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⢸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠄⠄ ⠄⠄⠄⠸⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠘⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠇⠄⠄

3 found this helpful

Not recommended Jun 27, 2018

Very boring, bad graphics. Not worth the 2.79$. Not recommend

2 found this helpful

Not recommended Aug 4, 2020

bad

1 found this helpful

Not recommended Jun 3, 2025

https://youtu.be/rOe-il7zgr8 Fast paced platforming lemmings is a fun twist but doesn't hit the mark due to an unclear center of mass to land the majority of cells on target jump after jump.

Recommended Dec 7, 2024

Way too hard for me so I never made it out of the stomach.

Recommended Dec 22, 2021

This platformer is a hidden gem! Very responsive and challenging with a surprising amount of depth and complexity as the levels go on. Great attention to detail with the animations and overall gameplay. Well done.

Community reviews

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