Average Playtime: 5 hours

Sentinel 4: Dark Star

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Sentinel’s award-winning strategy gameplay expands explosively as the interstellar war moves to a mysterious alien world. Deploy devastating new towers and technology against an enemy that’s smarter and more deadly than ever before as you explore the mystery of the Dark Star.CONQUER
  • A huge campaign across 31 unique maps, each also playable in Endless mode.
  • Defend massive, multi-screen landscapes and marathon paths.
  • A bestiary full of new and returning enemies. Their special abilities and varied behaviour will keep even veteran players on their toes.
  • The aliens fight back with the ability to damage, disable and destroy towers.
  • Control three varied Commander heroes to back up your defenses. Earn experience and level up to gain powerful new abilities.
  • Pick your loadout from an extensive assortment of weaponry. Unlock Uber Towers that pack power to match their size.
  • Deploy your own units onto the path to hinder attackers.
  • Call in support from the skies with the Sentinel's trademark ship weapons.
  • Unleash drones, nukes and more from your new improved Stronghold.
  • Spend your earnings on a massive selection of persistent upgrades to support your play style and complement your tactics.
  • Upload your score to the Global Nexus and contribute to the worldwide cooperative push for rewards.
  • Leaderboards and achievements with SteamWorks.
  • "This is a big and beefy tower defense game, meant for people not afraid of depth" - Gamezebo
  • "I would highly recommend picking up this addictive game" - Engadget
  • "A rich and absorbing tower defence experience" - Pocket Gamer
  • "Welcome to the gold standard of TD" - Touch Arcade


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Release date
Origin8 Technologies
Origin8 Technologies
Age rating
Not rated

System requirements for PC

  • OS: Windows Vista/XP
  • Processor: 1.2GHZ+
  • Memory: 2 GB RAM
  • Graphics: OpenGL 3.3 compatible. ATI, NVIDIA or Intel HD.
  • Storage: 300 MB available space

System requirements for Android

4.0 and up

System requirements for iOS

iPhone 3G S, iPhone 4, iPod Touch Fourth Gen, iPad 2 Wifi, iPad 2 3G, iPhone 4S, iPad Third Gen, iPad Third Gen 4G, iPhone 5, iPod Touch Fifth Gen, iPad Fourth Gen, iPad Fourth Gen 4G, iPad Mini, iPad Mini 4G, iPhone 5c, iPhone 5s, iPad Air, iPad Air Cellular, iPad Mini Retina, iPad Mini Retina Cellular, iPhone 6, iPhone 6 Plus, iPad Air 2, iPad Air 2 Cellular, iPad Mini 3, iPad Mini 3 Cellular, iPod Touch Sixth Gen, iPhone 6s, iPhone 6s Plus, iPad Mini 4, iPad Mini 4 Cellular, iPad Pro, iPad Pro Cellular, iPad Pro 9.7, iPad Pro 9.7 Cellular, iPhone SE, iPhone 7, iPhone 7 Plus, iPad 6 1 1, iPad 6 1 2, iPad 7 1, iPad 7 2, iPad 7 3, iPad 7 4, iPhone 8, iPhone 8 Plus, iPhone X, iPad 7 5, iPad 7 6, iPhone X S, iPhone X S Max, iPhone X R, iPad 8 1 2, iPad 8 3 4, iPad 8 5 6, iPad 8 7 8, iPad Mini 5, iPad Mini 5 Cellular, iPad Air 3, iPad Air 3 Cellular, iPod Touch Seventh Gen
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Last Modified: Nov 11, 2022

Where to buy

Google Play
App Store

Top contributors


1 edit
Stronghold General
Use 1000 Stronghold abilities
Psycho Campaigner
Finish the campaign on Psycho difficulty
Kill 500000 Aliens
Kill 500000 enemies
Campaign 2 Mission 5
Complete mission 5 of the second mini-campaign
Campaign 2 Mission 4
Complete mission 4 of the second mini-campaign
view all achievements
54 items

Sentinel 4: Dark Star reviews and comments

Translated by
Microsoft from Deutsch
The Sequel to Sentinel 3 comes from graphically nicely polished up and, like its Predecessor, is a classic Tower Defense Game. The PC version does not contain Micro Transactions. Grinding as a Replacement for Micro Transactions I started normal On the first mission, but after the first half dozen Missions you realize that you have too few Credits and after a Dozen that it can't be done without Grinding. With the earned In-game Credits, the Skills of the Towers and Support Skills can be expanded. There are a lot of Improvements, many of them in 10 individual Stages. Even with some Grinding, you won't even have bought the Hällfe of all the improvements when you first Reach the Last Mission. Due to the Lack Of Skillcredits, the tower selection is automatically limited, because in the Case of a tower that has been reduced in damage and Construction Costs, the Damage per Credit increases by 80%. In the Predecessor, only the Commander leveled, so you had to have a lot less Grinding. Can anyone Explain to game designers that it is a Fun Brake when a task already played through in normal Brings to easy more than in normal!?! This is Grinding in a boring Form. Presumably, in the Country Of Micro Transactions, this leads to the Developers ' income, but here on Steam We actually paid for everything in advance. Further short Graphic Looks good even in 1080p (worked at Part 3 stretched) Maps are bigger and better than in The Predecessor One can't resect the skill Distributions The Bags are only slightly altered Versions of the Towers from Part 3 Some Towers now occupy up to 3x3 Squares Of Auc h the Opponents are mostly old Acquaintances The Path of the Opponents cannot be changed by Towers As In Sentinel 3 you can interrupt a Game and later continue Very stable and bug-free Conclusion I had hoped for more from the Continuation of the Series, but see in too many Places It is not possible that it is originally fully designed for Micro Transactions. Despite the boring Grind, it's a decent Game and I mostly had my Fun. In The Ranking, I rank Sentinel: 4 Dark Star behind its Predecessor: http://steamcommunity.com/groups/GandVtest/discussions/5/594820656456148216/More Recommendations on Tower Defense Games: http://store.steampowered.com/curator/8896126-Gametests-and-Videos
Translated by
Microsoft from Swedish
Basically the same as 3. Added upgrades etc but the graphics and UI is dated and feels CC:d. Like they took the last game and added a few tricks. Not worth the price.
Translated by
Microsoft from Norsk
Do you Have ipad and like Startegi games, or tower defence you just have to have this game!! Is perfectly made for tablets, with amazing design, graphics, music and not least, a fantastic game that lasts Leeeenge!!
Translated by
Microsoft from Spain
I Am indignant! It is worth nothing after a good saga and waiting so long, for nothing, only had to make more maps and leave the same game engine.... It's a garbage, ugly graphics, it's WORTH NOTHING
Translated by
Microsoft from French
Finally done! All levels in all difficulties... I would have liked to see updates to add maps, but it is true that once we have found the right turret COMPO, it is a bit repetitive. But otherwise I loved ^^
Translated by
Microsoft from French
Despite the new routes, the new enemies and the new armaments, I remain on my hunger by arriving at the end of the various waves of invasion. In fact, once we understand where to place the weapons and how to use them, time seems long...;-)
Translated by
Microsoft from Italian
Deep and engaging, more than the previous chapters! Most marked RPG Elements. Only problem A bug that ruins the experience of the game: arriving at the maximum upgrade of the towers and selling them, you gain a considerably higher than the expense of all the costs of the initial upgrade.
Translated by
Microsoft from Danish
The fact that you need to repair towers completely ruins this game. it has turned into a money-starved click-party instead of being a strategy game. I'm also not a huge fan of scrolling screens, especially not on maps where you need to jump around with the commander - the viewport doesn't follow to where you jump, so you jump, scroll, jump, scroll and it's all very tedious and distracting. After such a long wait, this is a disappointment :-(
Translated by
Microsoft from Deutsch
Part 4 I like it very much again. It's just as captivating as the Predecessors, I'd just like to see a little more Variety from its Predecessors. The Parts are already very similar. The Controls could be better, for example, the Controls sometimes overlap and that can annoy. Unfortunately, on the big iPad Pro, the larger Screen isn't really taken advantage of. Nevertheless, the Game is really Fun and therefore 4 Stars. With better Operation also likes 5 Stars.
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