Sentinel 3: Homeworld

Sentinel 3: Homeworld

Origin8 · February 3, 2014 · Tower Defense, Strategy, Indie, Sci-fi, Action

Buy the Sentinel 3: Homeworld key for Steam from Gameseal at $1.06 — the cheapest of 12 stores we compare.

PC
Mostly Positive80% · 149
Best price 41 Good deal
$1.06-82%
lowest tracked $0.52
Gameseal Buy at Gameseal

Prices last checked

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Where to buy Sentinel 3: Homeworld — official stores

GamersGate
GamersGate
Standard Edition · Steam
-82%
$1.08
$5.99
Buy
GreenManGaming
Standard Edition · Steam
$5.99
Buy
Steam
Steam
Standard Edition · Steam
$5.99
Buy
Epic Game Store
Epic Game Store
Standard Edition · Epic Games
$6.99
Buy
ZOOM Platform
ZOOM Platform
Standard Edition · Steam
$6.99
Buy
Gamesload
Gamesload
Standard Edition · Steam
-20%
$7.99
$9.99
Buy

Cheapest Sentinel 3: Homeworld 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.

YUPLAY
Standard Edition · Steam
-85%
$1.16
$7.73
Buy
Gameseal
Standard Edition · Steam
$1.06
Buy
Eneba
Standard Edition · Steam
$1.12
Buy
Kinguin
Standard Edition · Steam
$1.14
Buy
Loaded
Standard Edition · Steam
-78%
$1.49
$6.69
Buy
CJS CD Keys
CJS CD Keys
Standard Edition · Steam
$2.11
Buy

Some store links are affiliate links — playze may earn a commission at no extra cost to you. It never changes the price you pay, and the cheapest confirmed price is always shown in the Best price box above.

Sentinel 3: Homeworld price by region

Sentinel 3: Homeworld costs £0.71 in the United Kingdom, €0.82 in Europe (EUR), $1.06 in the United States, $1.06 in Georgia (USD), CA$1.56 in Canada, A$1.58 in Australia, NZ$1.93 in New Zealand, R$4.10 in Brazil and zł4.58 in Poland right now.

Cheapest Sentinel 3: Homeworld offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £0.71 −82% £0.90 £0.71 9
Europe (EUR) €0.82 −82% €1.06 €0.82 11
United Statesyour region $1.06 −82% $1.08 $1.06 12
Georgia (USD) $1.06 −82% $1.08 $1.06 12
Canada CA$1.56 −80% CA$1.56 CA$1.65 7
Australia A$1.58 −82% A$1.58 — 6
New Zealand NZ$1.93 −82% NZ$1.93 — 5
Brazil R$4.10 −80% R$4.10 — 5
Poland zł4.58 −82% zł4.95 zł4.58 6

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 Sentinel 3: Homeworld

✦ AI summary

Sentinel 3: Homeworld brings the award-winning tower defense series to PC with an epic 20-level campaign where you deploy over 20 turrets, drones, and orbital weapons while commanding a customizable power-armored unit that levels up and joins the fight directly. Featuring a leveling commander, extensive weapon loadouts, endless modes, and new content including additional campaigns and enemies, it combines strategic tower placement with intense personal combat on the alien homeworld.

Sentinel 3: Homeworld

Sentinel 3: Homeworld — game info

Platforms
Windows
Player modes
Single-player
PC Game Pass
Not included

What Steam players say

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

✦ AI summary

Sentinel 3: Homeworld is a classic tower defense game that players praise for its engaging, challenging gameplay and satisfying tactical depth despite dated graphics, with many noting its perfect fit for short gaming sessions and high replayability. The PC port is described as a lazy adaptation of the mobile original, but fans of the genre consistently recommend it as one of the best tower defense experiences available and consider it worth purchasing, particularly when on sale.

Recommended Jul 26, 2025
I have very fond memories of this game playing it in the early days on android after getting it for like 10 cents because Android store had that 1 billion app promo or something. It still slaps. Sure it is a lazy port but the nostalgia is worth the 1.17 euro I paid for it on sale. edit: This is a very nice game to open for 5-20 minutes at a time, same as on a phone. Very fun still.
2 found this helpful
Recommended Jan 22, 2025
This is an old game, but it is fun to play. Graphics are dated, but gameplay is exactly what you want with tower defense. Challenging, but not impossible. Infinite mode available. Unit type and placement matters. Tactics involved... If you like tower defense games, do not miss this one! This is top tier gameplay, even if the graphics are a bit... or a lot... dated.
1 found this helpful
Recommended Nov 4, 2025
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Recommended Aug 15, 2025
I always find myself coming back to this game. It feels nostalgic {like, as in I played it in my childhood} but it only came out when I was 21 haha the way it looks and the way it plays feels very nostalgic and I love it. it might seem like a "simple" tower defence game but it's so damn hard sometimes- but its so much fun I don't even mind having to restart a level when I die. it's fun to come back and try to figure out how to win instead!
Recommended Aug 7, 2025
recommended
Recommended Mar 22, 2025
Finally found this game I love so much and use to play on the iPad... So happy it is on PC... Sentinel 3:Homeworld is very addicting. In my opinion is the best Tower Defense game that has ever existed!

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