

Ad Astra: Sci-Fi Tower Defense
Azure Moon Games Ltd. · December 20, 2024 · Indie, Strategy, Action RTS, Tower Defense, RTS
Buy Ad Astra: Sci-Fi Tower Defense from Steam at $0.99 — the cheapest of 1 store we compare.
Where to buy Ad Astra: Sci-Fi Tower Defense — official stores
Ad Astra: Sci-Fi Tower Defense price by region
Ad Astra: Sci-Fi Tower Defense costs £0.89 in the United Kingdom, $0.99 in the United States, €0.99 in Europe (EUR), $0.99 in Georgia (USD), CA$1.29 in Canada, NZ$1.49 in New Zealand, A$1.50 in Australia, R$3.49 in Brazil and zł4.49 in Poland right now.
| Region | Best price | Official store | Key shop | Stores |
|---|---|---|---|---|
| £0.89 | £0.89 | — | 1 | |
| $0.99 | $0.99 | — | 1 | |
| €0.99 | €0.99 | — | 1 | |
| $0.99 | $0.99 | — | 1 | |
| CA$1.29 | CA$1.29 | — | 1 | |
| NZ$1.49 | NZ$1.49 | — | 1 | |
| A$1.50 | A$1.50 | — | 1 | |
| R$3.49 | R$3.49 | — | 1 | |
| zł4.49 | zł4.49 | — | 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 Ad Astra: Sci-Fi Tower Defense
- Build & conquer: Construct a slew of resource-gathering structures as you fight to defend them from the incoming horde. Balance structure deployment with defenses to best the incoming machine-hordes.
- High-Tech Towers: Deploy an array of futuristic towers equipped with destructive cannons, laser arrays, & missile salvos to obliterate the machine menace. Be warned, you're just as liable to destroy your own infrastructure if you're not careful; mind your line of fire, Commander.
- Tiers of destruction: Advance through Tiers 1-3 of each tower to keep up with the strengthening tides of enemies. Can you balance the harvest of advanced metals, gases, composites & build more powerful tiers of defenses to protect your operations?
- Diverse Alien Enemies: Face off against a multitude of alien machine species, each with unique strengths & weaknesses. Adapt your strategies to counter armored mecha-beasts, swift infiltrators, shielded behemoths, & swarms of bio-mechanical inspired monstrosities.
- Dynamic Environments: Defend outposts in varying terrains, from rocky hills to icy alien moons & the scorching deserts of distant planets. Each environment presents its own ambience & hurdles.
- Bumpin' Beats: Enjoy the epic retro arcade sci-fi tunes by Ovani Sound. Use the Music Player to find your favorite beats and rock on to victory, or hop into the menu and adjust the independent sound sliders to your preference.
- Steam Deck: The game runs on Steam Deck with "Low" graphical settings. I am awaiting official review & compatibility status designation from Valve.
- Steam Cloud: Pick up where you left off on any PC or your Steam Deck thanks to Steam Cloud saves.
Ad Astra: Sci-Fi Tower Defense — 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.
Interesting offering, I got it for under 2 bucks US, so I';m not refunding, but I doubt I will play again. For starters, it has that questionable pop up trying to take me to an off site website to 'fix' my drivers. Never, ever do that, is my advice. That said, the game has an interesting look, but falls short. There are levels of towers, but you don't seem to be able to upgrade a tower, which is irritating. There is a marked lack of info, sliding the mouse over things on the screen offers no information, I have no clue what the range of my weapons are (a pretty important thing for a tower defense game) and the enemies so far are bland and lifeless. Even a little bit of fluff would have gone a good way towards giving the game some flavor and a reason to continue. It really does fall short on a lot of the things that make a tower defense game work, and as such, I can only give this a thumbs down.
Nice idea, but horribly done. You're totally lost at first, what you are supposed to do. You are just thrown in and have to figure out things on your own. So I got immediately stuck, by not having enough resources to build the one structure which would start everything. Consider this a bug, because it becomes imposssible to start the 1st wave, even. The interface lacks everything of a good interface, even the most basic UI concepts are completely missing. Bad fonts, bad music, bad camera distance ... and then bad and slow pace. I mean, it's hard to find something good at this, except maybe the idea of having of a terrain like this. This is an unfinished game, like a prototype at best, nothing improved after using some placeholder stuff. I really can't suggest this. It should be not considered even early access...
Amazing game from a solo dev! Great way to spend a few hours on a round, and the music rocks!
Classic feel game, enjoying it so far. Definitely challenging and fun, great soundtrack. Careful where you place your missile turrets don't end up destroying your base like I did \-_-/ 🤣
Time well spent :]
This has been good fun so far. Well priced, cool enemies, simple but really hard xD
Community reviews
0 reviews
Sign in to write a review.
No reviews yet. Be the first to review this game.
More like Ad Astra: Sci-Fi Tower Defense
News
XboxMinecraft Dungeons 2 Deluxe Edition: skip it, play on Game Pass
The Minecraft Dungeons 2 Deluxe Edition asks you to pre-order two unannounced DLC packs for a game Game Pass already gives you. What it contains, and why the upgrade can wait.
Sep 30, 2026
PCIs DayZ worth it? A straight answer before you buy
Is DayZ worth it? Twelve years on it is still the genre's least forgiving game. What you are buying, who it suits, and what our 97-day price record says about the timing.
Sep 30, 2026
PCTransport Fever 3 price: which edition to buy on launch day
Transport Fever 3 is out today. The Transport Fever 3 price splits three ways, the loyalty discount has a fortnight-long fuse, and our record shows what the older game really costs.
Sep 29, 2026
PCNo Man's Sky price: how low it gets and when to buy
The No Man's Sky price has come a long way down since 2016, and the game is on PC Game Pass too. Our tracked 12-month low, the regional key gap, and what to actually pay.
Sep 29, 2026
DealsSekiro cheap: what our price record shows, and what to avoid
Search Sekiro cheap and the results are keyshop listings, not a store discount. Our three-month price record explains the gap, and why so few live offers changes the advice.
Sep 28, 2026
FreebiesSystem Shock 2 Remaster free on Epic from 1 October
System Shock 2 Remaster free on Epic from 1 to 8 October, alongside BURIED STARS. Our price record shows why its floor has not moved in three months, and why waiting beats buying this week.
Sep 28, 2026
PCDead Island 2 cheap: which edition, and what the price does
Dead Island 2 cheap used to mean under a dollar. Our price record shows the floor has roughly doubled since September - here is which edition to buy, and the one that is a trap.
Sep 27, 2026
DealsSteam Autumn Sale 2026: the games that cannot be discounted
The Steam Autumn Sale 2026 runs 1-8 October, but Valve's own rules bar every September release from it. Which games are locked out, and what our record says about the two biggest.
Sep 27, 2026
PCTekken 8 ღირს თუ არა: 91 ქულა და შერეული შეფასება
Tekken 8 ღირს თუ არა, როცა კრიტიკოსებს 91 ქულა აქვთ დაწერილი, მოთამაშეებს კი „შერეული"? ფასი, ონლაინის მდგომარეობა და უკეთესი ალტერნატივა.
Sep 24, 2026
DealsStellaris იაფად: ოცდახუთი დამატება და ერთი გამოსავალი
Stellaris იაფად ყიდვა საბაზისო თამაშის შემთხვევაში მარტივია. ძვირი დამატებებია — და მათთვის არსებობს ვარიანტი, რომელსაც ბევრი ვერ ამჩნევს.
Sep 24, 2026
PCARK ფასი: Evolved თუ Ascended — რომელი ვიყიდოთ
ARK ფასი ორი სხვადასხვა თამაშის ფასია. რომელი ჯობია ქართული სიიდან, სად არიან მოთამაშეები და რატომ არ ღირს ახალ ვერსიაზე გადახტომა.
Sep 24, 2026
DealsCivilization 6 იაფად: რომელი დამატება ღირს მართლა
Civilization 6 იაფად ყიდვა მარტივია — საბაზისო თამაში იაფია და იაფად რჩება. რთული ის არის, რომ ცხრამეტი დამატებიდან სწორი აირჩიოთ.
Sep 24, 2026
FreebiesCS2 უფასოდ: რა ღირს სინამდვილეში Prime
CS2 უფასოდ ითამაშება საქართველოდანაც და ეს დემო არაა. ფული მხოლოდ Prime-ს სჭირდება — აი, რას იძლევა ის და ვის ღირს.
Sep 24, 2026
PCCuphead ღირს თუ არა: სირთულე, DLC და ორზე თამაში
Cuphead ღირს თუ არა: ექვსივე ქართულ მაღაზიაში ერთი ფასია, მეგობარს კი ასლი საერთოდ არ სჭირდება. სირთულე, ერთადერთი დამატება და როდის ვიყიდოთ.
Sep 23, 2026
DealsRimWorld იაფად: ბაზა, ხუთი დამატება და სწორი რიგი
RimWorld იაფად ყიდვა დამატებების რიგზეა დამოკიდებული, არა ფასდაკლების ლოდინზე. რომელი ხუთიდან ღირს ჯერ და რომელ მაღაზიას აქვს ფასდაკლება.
Sep 23, 2026
PCPhasmophobia ფასი: ოთხი ასლი და ერთი მაღაზია
Phasmophobia ფასი ქართულ სიაში მხოლოდ ერთ მაღაზიაში ჩანს, თამაში კი ოთხზეა გათვლილი. რატომ ღირს ფასდაკლების დალოდება და რა გჭირდებათ დასაწყებად.
Sep 23, 2026Top games right now
All rankings →- 1Counter-Strike 2Free
- 2Dota 2Free
- 3PUBG: BATTLEGROUNDSFree
- 4Grand Theft Auto V Legacy—
- 5Terraria$2.20
- 6Rust$25.98
- 7Team Fortress 2Free
- 8Black Myth: Wukong$35.70
- 9HELLDIVERS™ 2$30.92
- 10ELDEN RING$52.89
- 11Apex Legends™Free
- 12Left 4 Dead 2$9.99
- 13Stardew Valley$14.74
- 14Wallpaper Engine$3.99
- 15Euro Truck Simulator 2$4.99
- 16Dead by Daylight$10.40
- 17Red Dead Redemption 2$12.49
- 18Baldur's Gate 3$41.99
- 19Phasmophobia$18.24
- 20War ThunderFree
- 21Call of Duty®—
- 22ARK: Survival Evolved$14.20
- 23Among Us$3.03
- 24The Forest$19.99
Buy at Steam 










