What is the cheapest place to buy Interplanetary?

Eneba at $0.93 — the lowest of the 4 stores we compare for your region. Eneba is a keyshop: it resells keys, which can be region-locked or a different edition. No official store we track sells it in your region right now. Prices update through the day, so check the table above before buying.

Is Interplanetary free?

No — Interplanetary is a paid game. The cheapest we can find it is $0.93.

Has Interplanetary ever been cheaper?

No — the current price matches the lowest we have tracked since we started tracking it in June 2026, $0.93.

Is Interplanetary Steam Deck compatible?

Mostly. Valve rates Interplanetary Playable on Steam Deck: it runs, but may need some manual tweaking — a community controller layout, or zooming in on small text.

Can I play Interplanetary on Mac?

Yes. Interplanetary has a native macOS version on Steam.

Does Interplanetary have crossplay?

Yes — Steam lists Interplanetary with cross-platform multiplayer, so players on Steam can play with players on other platforms. Steam does not say which platforms; the developer's site has the full list.

Is Interplanetary on PC Game Pass?

No — Interplanetary is not on PC Game Pass right now. The best price to buy it right now is $0.93.

Interplanetary

Team Jolly Roger · May 12, 2015 · Strategy, Indie, Space, Turn-Based Strategy, Turn-Based

Buy Interplanetary from Eneba at $0.93 — the cheapest of 4 stores we compare.

Strategy deals Indie deals Turn-Based Strategy deals Space deals

Mostly Positive79% · 8041playing now

Best price

35 All-time low

$0.93

⭐ lowest tracked

Buy at Eneba

Prices last checked 30 Sep 2026, 08:09 UTC

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Cheapest Interplanetary 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.

Eneba

Standard Edition · Steam

$0.93

Buy

Driffle INC

Standard Edition · Steam

$1.80

Buy

Gameseal

Standard Edition · Steam

$1.57

Buy

CJS CD Keys

Standard Edition · Steam

$2.72

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 option is always shown in the Best price box above.

Interplanetary price by region

Interplanetary costs $0.93 in the United States, £1.18 in the United Kingdom, €1.32 in Europe (EUR), zł6.91 in Poland and R$9.39 in Brazil right now.

Cheapest Interplanetary offer in each region, in local currency
Region	Best price	Official store	Key shop	Stores
United Statesyour region	$0.93	—	$0.93	4
United Kingdom	£1.18	—	£1.18	3
Europe (EUR)	€1.32	—	€1.32	4
Poland	zł6.91	—	zł6.91	2
Brazil	R$9.39	—	R$9.39	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 Interplanetary

✦ AI summary

Wage interplanetary war in this turn-based strategy game where you build up your planet's defenses and artillery to obliterate rival worlds across a hostile solar system. Master the art of long-range bombardment by navigating gravity wells and celestial obstacles while managing resources, researching tech, and outsmarting opponents in tactical 1v1 battles.

http://store.steampowered.com/app/650220/

----

NOTE: The original Interplanetary is no longer on sale. Instead, you can purchase the improved version—Interplanetary Enhanced Edition.

----

Interplanetary is a turn-based strategy artillery game based on a hard scifi setting. It offers players an interplanetary battlefield where they can develop their home planets and use massive artilleries to wage war.

It's an arms race of interplanetary scale, with each planet developing increasingly powerful weapons. Massive railgun batteries are the backbone of any interplanetary arsenal, but the cunning use of missiles and precision lasers may hold the key to victory. Strategic building patterns, upgrades and defense structures might keep your vital installations standing long enough to give you an edge, but it's only a matter of time until all but one must fall.

Sometimes, your greatest foe is the planetary system itself! Don't let the unpredictable gravitational changes get the better of you - observe your surroundings, use them to your advantage, and blast your enemies back to the stone age!

Key Features

Challenge your friends in hotseat or online matches or fight skirmishes against the AI.
Build and manage your planet's infrastructure.
Gather resources and decide the most efficient use for them.
Research and develop increasingly futuristic technologies.
Spy on your enemies to reveal their planets' weak points.
Use your artillery constructions to aim across the planetary system, avoiding other celestial bodies and their gravity.
Fire your railguns, missiles and beam weapons to annihilate the enemy and claim the planetary system for your civilization!

Interplanetary — game info

Platforms: Windows, macOS, Linux / SteamOS
Steam Deck: Playable
Player modes: Single-player, Multiplayer, Cross-platform multiplayer
PC Game Pass: Not included

More games like this:Mac games Linux games Crossplay games

Price alert

Get notified the moment the price hits your target.

Interplanetary price history

Interplanetary is $0.93 at Eneba right now, compared across 4 stores. That matches the lowest price we have tracked.

2026-06-19low $0.93 · now $0.93

Great time to buy — It's at (or within 3% of) its lowest tracked price.

Across the 88 days we have tracked it, the cheapest offer has ranged from $0.93 to $2.28 (median $1.53) — 59% between the two. It has been within 5% of that low on 4 of those days (5%).

Tracked low: $0.93
Tracked high: $2.28
Typical (median): $1.53
Days near the low: 5%

Interplanetary price changes · tracked since 19 Jun 2026
Date	Price	Store
29 Sep 2026	$0.93 ▼	Eneba
27 Sep 2026	$0.96 ▼	Eneba
26 Sep 2026	$0.98 ▼	Eneba
25 Sep 2026	$1.02 ▼	Eneba
22 Sep 2026	$1.13 ▼	Eneba
21 Sep 2026	$1.20 ▼	Eneba
20 Sep 2026	$1.21 ▼	Eneba
19 Sep 2026	$1.25 ▼	Eneba
18 Sep 2026	$1.34 ▼	Eneba
15 Sep 2026	$1.40 ▼	Eneba
12 Sep 2026	$1.44 ▼	Eneba
11 Sep 2026	$1.47 ▼	Eneba

Embed this price on your site

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

Interplanetary — questions & answers

What is the cheapest place to buy Interplanetary?: Eneba at $0.93 — the lowest of the 4 stores we compare for your region. Eneba is a keyshop: it resells keys, which can be region-locked or a different edition. No official store we track sells it in your region right now. Prices update through the day, so check the table above before buying.
Is Interplanetary free?: No — Interplanetary is a paid game. The cheapest we can find it is $0.93.
Has Interplanetary ever been cheaper?: No — the current price matches the lowest we have tracked since we started tracking it in June 2026, $0.93.
Is Interplanetary worth buying now?: Great time to buy. It's at (or within 3% of) its lowest tracked price.
Is Interplanetary Steam Deck compatible?: Mostly. Valve rates Interplanetary Playable on Steam Deck: it runs, but may need some manual tweaking — a community controller layout, or zooming in on small text.
Can I play Interplanetary on Mac?: Yes. Interplanetary has a native macOS version on Steam.
Does Interplanetary have crossplay?: Yes — Steam lists Interplanetary with cross-platform multiplayer, so players on Steam can play with players on other platforms. Steam does not say which platforms; the developer's site has the full list.
Is Interplanetary on PC Game Pass?: No — Interplanetary is not on PC Game Pass right now. The best price to buy it right now is $0.93.

What Steam players say

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

Recommended Aug 20, 2026

This is a pretty good turn based strategy - that mixes city / planet building with artillery "one salvo per turn" gameplay. BUT You don't want this version, its been superseded by: Interplanetary Enhanced Edition https://store.steampowered.com/app/650220/Interplanetary_Enhanced_Edition/

Recommended Mar 29, 2026

gg

Not recommended Nov 20, 2025

Note to self: skip it for the enhanced edition.

Recommended Sep 9, 2025

It's probably how future space conflict will actually be.

Recommended May 10, 2025

cool

Not recommended Aug 1, 2024

I see why the Enhanced Edition exists now. Don't get me wrong the game isn't bad and it has one or two things thats a lie only one thing that I enjoy compared to the Enhanced Edition. Sadly its not a major thing so... Enhanced Edition truly is enhanced. +Even though Enhanced Edition is cool and fun one thing that somewhat bothered me was that you never really got to see the impacts of whatever projectile was being thrown at a planet. You could definitely see them flying through space and hitting ♥♥♥♥ but it was really hard and just not really worth it to try and catch the moment of actual impact. Well in here you can! The camera settings are a bit different and they're mainly worse I'd say but thanks to that with some luck you can actually see the projectiles impacting a planet from up close. It looks pretty damn good. -Enhanced Edition looks better. -Enhanced Edition not only looks better graphically but it looks better UI wise too. Its still the same like the core is the same but Enhanced Edition, it should be obvious from the name, offers a few little enhancements that makes things a little faster and a little more beautiful compared to this one. Especially the tech tree Enhan…

Community reviews

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