Compare Project G prices across trusted key stores and find the best deal. Developed by Nebula Interactive. Published by Nebula Interactive. Released on 5/13/2016. Available on PC. Genres: Indie.

A scrappy underwater shmup with a credit-farming loop and three submarine tiers to unlock - charming in concept, rough around the edges in practice, but honest about what it is.

I went in with low expectations and came out with something more complicated than a clean thumbs up or thumbs down. Project G is a retro side-scrolling shooter set in a flooded, dying 2110 where humanity survives on secret marine farms - and where the cybernetic fish-bots meant to protect those farms have gone rogue. It is a small game with a clear vision: earn credits, shoot things, upgrade your submarine, repeat. That loop is modest but it functions, and there is something genuinely appealing about the underwater setting in a genre that usually lives in outer space. The moment-to-moment play is built around a primary weapon (fired with CTRL or a gamepad button) and a secondary slot you fill before each level from three options: depth charges, torpedoes, or nukes. Your secondary choice is partly locked to your submarine tier, which is where the light progression system comes in. You start with the entry-level sub, upgradeable five levels and limited to missiles. Save 5,000 credits and you unlock the mid-tier boat with bombs added to the mix. The top-tier vessel, unlocked at 10,000 credits, opens all three secondaries and allows ten upgrade levels - and most experienced players will tell you the middle tier is a trap worth skipping entirely. That kind of mechanical honesty about its own design is both endearing and a little telling. Each area groups five stages that share a soundtrack, with enemy types rotating as you move between zones. Stage completion scores you up to three stars, with gold rewards scaling to your performance. The star system adds mild replayability without demanding it. Where things get uneven is the enemy AI: two identical-looking fishbots can behave completely differently, one drifting past harmlessly and another cornering you against the screen edge. Environmental hazards like steam jets and floating nukes layer on top of that unpredictability in ways that occasionally feel arbitrary rather than challenging. Boss patterns shift at health thresholds but rarely demand a real strategy adjustment. A lore layer exists too - collect scattered log entries across levels to piece together the Giga Corp backstory - though it is thin enough to feel more like a bonus than a reason to play. The co-op mode, added post-launch as a local split-screen option using dual controllers, is a sweet little addition for genre fans with a couch partner. It does not transform the game, but it adds warmth to something that might otherwise feel solitary and slight. At its price point, Project G sits in that honest low-budget tier where the craft is visible but the polish is not. There are animation hitches, AI inconsistencies, and a difficulty curve that spikes at moments that feel untested rather than intentional. Reviewers at launch clocked around four to ten hours to reach the end, and that feels about right for what is here. If you have a specific fondness for underwater shmups, or you want something short and undemanding that moves at its own quiet pace, Project G will not embarrass itself. It is not a genre standout, but Nebula Interactive built something with a real identity on what was clearly a limited budget, and that counts for something. Approach it as a curiosity, not a statement. Kai, Scout Team

Project G

Project G

May 13, 2016Nebula Interactive
GamerScout Says

A scrappy underwater shmup with a credit-farming loop and three submarine tiers to unlock - charming in concept, rough around the edges in practice, but honest about what it is.

PC
Best Price Available
€2.39
at Steam
Lowest tracked: €2.39
Track this price

GamerScout Verdict

Worth a look for retro shmup collectors and underwater-theme fans; anyone else should temper expectations hard.

Compare Prices(5 stores)

SteamBest price
StandardEurope (EU)Steam KeyKey
€2.39
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€2.90
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€3.11
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€3.24
Priced in EUR by the store
Buy
StandardGlobalSteam KeyGift copy
€3.48-18%
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€3.68
Priced in EUR by the store
Buy

Every store in this table quotes us in euros, so the EUR figure is the price the seller actually set, not our arithmetic — which is why EUR is also the currency we rank in. We only list an offer here when the store gives us its price in euros, so nothing in this table is a number we invented.

Pick USD, PLN, GBP, CAD or AUD in the header and we convert from EUR at the European Central Bank reference rate — converted amounts are prefixed with ~. Your bank or the store may apply a different rate at checkout. We never hide offers based on where you are: everyone sees this whole table.

We may earn a commission when you buy games through links on this page — at no extra cost to you. It never affects our rankings or verdicts.

Price History

Lowest tracked
€2.3929 Aug 2026
Current best
€2.39
Lowest since we started tracking
Official storesKeyshops
€2.30€2.62€2.95€3.277 Jun30 Jun23 Jul14 Aug6 Sept
7 Jun — 6 Sept
Create alert

Screenshots & Media

About Project G

I went in with low expectations and came out with something more complicated than a clean thumbs up or thumbs down. Project G is a retro side-scrolling shooter set in a flooded, dying 2110 where humanity survives on secret marine farms - and where the cybernetic fish-bots meant to protect those farms have gone rogue. It is a small game with a clear vision: earn credits, shoot things, upgrade your submarine, repeat. That loop is modest but it functions, and there is something genuinely appealing about the underwater setting in a genre that usually lives in outer space. The moment-to-moment play is built around a primary weapon (fired with CTRL or a gamepad button) and a secondary slot you fill before each level from three options: depth charges, torpedoes, or nukes. Your secondary choice is partly locked to your submarine tier, which is where the light progression system comes in. You start with the entry-level sub, upgradeable five levels and limited to missiles. Save 5,000 credits and you unlock the mid-tier boat with bombs added to the mix. The top-tier vessel, unlocked at 10,000 credits, opens all three secondaries and allows ten upgrade levels - and most experienced players will tell you the middle tier is a trap worth skipping entirely. That kind of mechanical honesty about its own design is both endearing and a little telling. Each area groups five stages that share a soundtrack, with enemy types rotating as you move between zones. Stage completion scores you up to three stars, with gold rewards scaling to your performance. The star system adds mild replayability without demanding it. Where things get uneven is the enemy AI: two identical-looking fishbots can behave completely differently, one drifting past harmlessly and another cornering you against the screen edge. Environmental hazards like steam jets and floating nukes layer on top of that unpredictability in ways that occasionally feel arbitrary rather than challenging. Boss patterns shift at health thresholds but rarely demand a real strategy adjustment. A lore layer exists too - collect scattered log entries across levels to piece together the Giga Corp backstory - though it is thin enough to feel more like a bonus than a reason to play. The co-op mode, added post-launch as a local split-screen option using dual controllers, is a sweet little addition for genre fans with a couch partner. It does not transform the game, but it adds warmth to something that might otherwise feel solitary and slight. At its price point, Project G sits in that honest low-budget tier where the craft is visible but the polish is not. There are animation hitches, AI inconsistencies, and a difficulty curve that spikes at moments that feel untested rather than intentional. Reviewers at launch clocked around four to ten hours to reach the end, and that feels about right for what is here. If you have a specific fondness for underwater shmups, or you want something short and undemanding that moves at its own quiet pace, Project G will not embarrass itself. It is not a genre standout, but Nebula Interactive built something with a real identity on what was clearly a limited budget, and that counts for something. Approach it as a curiosity, not a statement.

Kai
Kai · Scout Team

Indie & narrative

Tags

singleplayermultiplayerachievementstrading-cardstier:sub-5Underwater ShooterSubmarineCredit FarmingLocal Co-opRetro ShmupTier ProgressionLore CollectiblesController SupportArcade-Style

System Requirements

Minimum

OS
Windows 7
Memory
2 GB RAM
Storage
766 MB available space
Graphics
512 MB
Processor
Core i3

Recommended

OS
Windows 7
Memory
4 GB RAM
Storage
766 MB available space
Graphics
1 GB
Processor
Core i3

Keep exploring

Community Discussion

Be the first to comment on Project G.

Reviews & Ratings

No ratings available

Game Info

Developer
Nebula Interactive
Publisher
Nebula Interactive
Release Date
May 13, 2016

Price Alert

Get notified when the price drops below your target!

Create Alert
Best price€2.39
See offer

Across the 24,365 games we track, a verified key was cheaper than the official store 90% of the time. See the method and the full numbers in our game price report.

No card? Pay another way

Top up your Steam Wallet or buy crypto with any card — instant delivery, no bank account needed.

Buy smarter: helpful guides

Frequently asked questions about Project G

How much does Project G cost?

As of 6 September 2026, the cheapest in-stock offer for Project G is €2.39 at Steam, out of 6 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy Project G cheapest?

The lowest in-stock price we track for Project G is €2.39 at Steam (6 September 2026). We compare 6 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is Project G available on?

Project G is available on PC.

When was Project G released?

Project G was released on 13 May 2016.

Who developed Project G?

Project G was developed by Nebula Interactive.