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I love space, I love how mysterious and dangerous it is and to be able to fly around in a game like Helium Rain [Steam] is fantastic. I decided to have a chat with the developer and they’re very positive about Linux gaming.

We’ve covered Helium Rain here a few times before, so hopefully some of you will be familiar with it. Without further rambling, let's begin!

First of all, can you introduce yourself and Helium Rain?

“Hello ! I'm Gwennaël Arbona from the indie developer Deimos Games. We've recently released our first title, Helium Rain, in Early Access on Steam. Helium Rain is a spaceflight and empire-building game where you play as the owner of a trading company, in a star system far away from us. Technology is limited in this universe, and different companies fight for control.”

What makes Helium Rain different to other space sims?

“Helium Rain has a focus on three important elements : realistic handling of ships, long travel times, and a dynamic universe. Ships have lots of inertia, they move in three dimensions, can turn independently from their velocity, and don't have a maximum speed. Fleets can take days to reach a destination, with a travel system that is essentially turn-based and requires you to plan ahead when you manage military fleets. And attacking a cargo ship, destroying resources or blockading an area have meaningful consequences on the world's simulated economy.”

Since travel time can take a while, how do you plan to keep players from getting bored?

“Right now, travel time is handled as a turned-based mechanic. We don't want players to wait for hours behind a screen, we just want them to move their fleets carefully, as they won't be able to come back at once if a threat appears. In the future, I'd like to make travelling a more seamless experience, but that's not something we know how we'll handle yet.”

What games inspired you to make Helium Rain and why?

“Our list of inspirations would be a very long one! I would describe the game as a collision of spaceflight and strategy game, with space sim influences like the X series or Kerbal Space program, and games like Total War or Mount & Blade. Books, movies and TV shows are also a great source of ideas for me.“

Are you sticking with singleplayer, or is multiplayer on the roadmap too?

“Helium Rain is decidedly singleplayer only. This is an important decision on the design that enables much more complex simulations and a lot more player agency. We feel that many multiplayer space sims already exist, or are being developed right now, but not so many games offer a great empire-building experience. Our goal is to let the player have fun and experiment on the game. You can take the world over if you want to, which isn't something we could offer in a multiplayer game.”

For Helium Rain, you went with Unreal Engine 4. We've heard many mixed reports about UE4 and it's support for Linux, how has it gone for you?

“The engine does a good job at working on different platforms, but we still need to test carefully and look for stable engine releases that don't have breaking issues. I'd like to thanks the volunteers who send pull requests with every version to make sure Linux is still well-supported!

For developers, the most annoying part of getting UE4 to run is the requirement to build the engine yourself first. It is an easy process, but a time-consuming one. Once the engine runs, differences with Windows are very limited, except for minor rendering differences and different compilers. We had only a handful of Linux-specific issues during development. On the client side, things depend a lot on your hardware and Linux distribution of choice. Our top Linux priority right now is AMD support, which isn't working well. We also had issues with some Linux distributions in the past, when the engine moved to a newer LLVM release that only some distributions were providing.

Overall, the environment for releasing Linux games is much better today than it was five years ago. Most game engines support Linux, the biggest game marketplaces support Linux, and the arrival of Vulkan should help with the video drivers that can still be an issue today.”

In terms of sales, how has the Linux version sold against Windows & Mac?

“We've been pleasantly surprised by the Linux sales! Estimates of the Linux market share are conflicting at best, and while we knew Linux gamers were supportive of games that were made available to them, we didn't think we would sell many Linux copies. But we actually sold 11% of all copies on Linux, a number that's been stable since we launched. For us, it's a confirmation that Linux gaming is alive and well, with highly supportive people buying games.

We didn't work on a Mac release, since Mac OS is officially available only on computers that wouldn't meet our required system specifications.”

11% sales from Linux sounds like a lot, that's well above what the Steam Hardware Survey shows for the Linux market share, any thoughts on that?

“Our take is that Linux gamers are much more enthusiastic about games on their platform, and that our game has a lot of deep mechanics to master, which probably attracts the same kind of people who love the idea of a free operating system. We also released the source code [GitHub] for the game, which might be another reason why Linux gamers get more interested than Windows gamers. I think everyone has a different reason.“

Your game is currently in Early Access, how do you plan to keep the community involved as the game progresses?

“We're very happy with how Early Access is going on right now. We receive a lot of feedback, sometimes so much that it's hard to process! We entered Early Access with a list of upcoming game features, but we didn't know which the player wanted first, or if they wanted them at all. As a result, one of our biggest updates yet was built on player suggestions, and our next update is also an answer to something that was requested a lot. Our policy is that everything a player suggests can be a great idea for the game, if we can pull it off. Multiplayer is an example of request that we can't fulfill because it breaks too many assumptions and requires too much work, but our next update brings a quick-fight mode that is a fun addition, somewhat easy to add, and useful for balancing the game.

We still have some of our initial feature list left to implement, such as a storyline, and we expect to keep working on the game for some time before we can release it.”

With all the changes happening on Steam, from Greenlight to Steam Direct, how have you found the experience? It must be harder with so many more titles arriving on Steam now?

“We found Steam to be a very crowded market, with a hundred new titles launching every week. We passed Greenlight a few years ago, and could observe the transition to the relaxed Steam Direct process. Our experience is that Steam brings little visibility to new games, and you need an active campaign on social media to get people to notice your game. Word of mouth is very important for us, which is why we track review and comments so that we know what the players are annoyed with.“

What’s your testing procedure for the Linux version? Do you test on the open source AMD GPU drivers, or mainly NVIDIA?

“At this moment, we only test on NVIDIA hardware, based on what we currently own. When the game moves to a final release, we'll try to have more testing on AMD hardware ; but hopefully by this point we will have our AMD issues resolved.”

For other developers currently working with Unreal Engine 4 who are looking to do a Linux version of their game, any words of advice?

“An important piece of advice would be to get in touch with other UE4 developers, either on forums or the UE4 Discord channel. Most of the work on porting and releasing the game is very simple, but you'll often need pointers on specific issues and workarounds. It's also important to be cautious and test your game well before releasing, something that is always important but even more so on Linux, where the software environment can be very different from one machine to another.

And of course, the most important advice would be to actually release your game on Linux. Do it!”

 

I would like to thank Gwennaël for taking the time to have a chat with me, it’s always a pleasure to be able to do interviews like this, especially for a rather exciting game.

You can find Helium Rain on Steam and the Official Site. It's currently 30% off as well, good time to try it out.

36 Likes, Who?
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46 comments
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Guest 3 January 2018 at 1:16 pm UTC
Great interview! Thank you!
11% is a number with potential for more. Just purchased it!
MaCroX95 3 January 2018 at 1:23 pm UTC
This is amazing, apparently there's no "there are no customers on Linux, therefore we won't bring this game to Linux" excuse anymore. I really think we should support developers like this that are so open and honest about our platform! GJ guys!
Tiedemann 3 January 2018 at 2:11 pm UTC
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I'll buy it. Devs like that makes me happy
Guest 3 January 2018 at 2:11 pm UTC
Developers attitude is on point. Purchase guaranteed
Tchey 3 January 2018 at 2:40 pm UTC
Excellent, thanks for the interview.

I'm glad to see a successfull space-semi-sim + Linux + French game !
Shmerl 3 January 2018 at 3:28 pm UTC
Looks like an interesting game. Did GOG not accept it for their games in development program?
Tuxee 3 January 2018 at 3:30 pm UTC
Just bought. Mainly because I like the developers attitude (demonstrated by having the source on GitHub). All the better if the game is good, too.
Shmerl 3 January 2018 at 3:31 pm UTC
QuoteAt this moment, we only test on NVIDIA hardware, based on what we currently own. When the game moves to a final release, we'll try to have more testing on AMD hardware ; but hopefully by this point we will have our AMD issues resolved.

This sounds a bit confusing. How can they resolve such issues by that time, if they don't test on AMD?
raneon 3 January 2018 at 4:03 pm UTC
It is refreshing to see that the game is basically open source. Hope they will support Vulkan on Linux soon. I bought the game as well :-)
scaine 3 January 2018 at 4:06 pm UTC
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Shmerl
QuoteAt this moment, we only test on NVIDIA hardware, based on what we currently own. When the game moves to a final release, we'll try to have more testing on AMD hardware ; but hopefully by this point we will have our AMD issues resolved.

This sounds a bit confusing. How can they resolve such issues by that time, if they don't test on AMD?

Memory of previous articles suggests to me that their AMD issues are UE4 engine related. Something about the way Mesa worked shaders? So if release is still a long way off, UE4 might resolve these issues as a matter of course.

Pure speculation on my part though.
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