I really wish someone would do an OpenRCT3. It was so much fun being able to ride your creations. I had a 3D projector back then too, which made the game even more awesome. Such an underrated sequel.
And yes I'm aware that Planet Coaster exists but has anyone actually tried playing that game? They made everything way too complicated and I just can't get into it. I don't want to engineer every single bend and design the perfect landscaping from scratch, I just want to slap some rides together, see the guests come pouring in, and occasionally ride one of my rides (in VR, ideally). No game since RCT 3 has satisfied that itch for me.
OpenTTD is fantastic. The graphics might give new players pause, but if you like building networks or logistical puzzles, or just like trains, it's still one of the best in the genre.
Too many amazing moments and memories to even count, always more to learn. I love how the open source nature of the game means there's many different servers branching off from each other, running their own custom versions of the game. Smaller servers "downstream" pick and choose which features they want to keep when the upstream servers implement something new.
You might not be aware but there's also a fairly content-rich successor project called SpaceStation 14! Its obviously nowhere near as featureful as 13 is, due to lack of development time but has a very active development community around it.
One of the major (imo) improvements is a move to per pixel "real time" movement instead of the tile movement of ss13, it helps make them game feel much more alive and interactive.
Definitely worth a look for fans of ss13, and its also open source and Linux compatible.
Is there anyway to play on Linux? I've always wanted to try a role playing game but never found one that I think I'd vibe but ss13 looks right up my alley.
It's not open source, but I do want to mention Barotrauma here -- it's not totally unheard of, but I don't think many people realize that it's a spiritual successor to SS13. Supports a lot less players, but still up to 12 or something on the bigger ships, and it manages to turn the absolute insanity of SS13 into a compelling survival game that still has plenty of goofiness.
I entered SS13 with the ssethtide and I stuck around past the worst of it but I haven't logged in since probably 2021. Is it a good time to come back and see what's up? I enjoyed high population servers and a lot of people were leaving with the tide around and before when I did. What's an average server pop these days?
The overcomplexity of the game is part of why I love it so much but it's also what drove me off of it, because I couldn't figure out how to run an offline server to practice roles and I wasn't trying to do my first day of engineering or doctoring on a public lobby if I could help it. I had a lot of fun in Mining and Cargo and occasionally just faffing about as an assistant helping Botany grow weed or bringing monkeys to the chef - but I'd like to learn "a real job" one of these days (he says, knowing exactly how pissed off everyone gets if mining or cargo either die or are understaffed). And most folks didn't usually seem inclined to adopt assistants, unfortunately. Remember folks, adopt wandering assistants and then spay and neuter them because unattended assistants will cook their hands off trying to break into the armory.
I mostly play on tgstation's european server Terry, which often gets up to 100 players in the busy hours.
I know exactly the kind of anxiety you mention when it comes to having to learn a new role. That was partly why I also had the idea of installing a server locally to tinker with the mechanics in, which fortunately tgstation actually makes very easy. My problem then is that I only have like 10 minutes alone on the station before the power runs out, and I have to go set up the solar panels to continue my experiments. Turns out being solo crew on a space station isn't all that easy.
Probably not unless you get public funding (eg, run a massive deficit, take control of the public AI to build stuff, debug features, etc) or you first create a resource chain or two to pay for transit.
No variant rules unfortunately according to the Fdroid. You should check out the sudoku games from Cracking The Cryptic on the Google Play store if you want that. They aren't FOSS but they have hundreds of handcrafted puzzles for a few bucks.
Your likely looking for the app "Puzzles" ob Android or one of its desktop versions, I am not entirely sure if they are actually open source but there are at least some people's contributions and it not only has "Killer" sudoku but a whole bunch of additional options (as well as tons of other awesome puzzle/logic games)!
I played this in high school circa 2013. There was a server up 24/7 that hosted an infinite loop of the Venice map that always had the highest server pop. You'd occasionally find other servers going, or be able to host your own and get randoms, but more often than not, I played a TON of Venice for about a year. Good times.
I still haven't tried it, but I've heard how great Veloren apparently is. It's an MMO voxel game that takes inspiration from Zelda: Breath of the Wild and is written in Rust.
I would say yes and no. It is a game about evolution with some similarities but it is very focused on a realistic representation of evolution. This makes it a more complex game than spore and actively encourages many different niches not just agressive, peaceful and mixed as spore did.
Aldo currently they are working on finishong the cell stage and the beginning of the multicellular stage while have more in deapth discussion about the transition between the microscopic and macroscopic phases among other things.
From a quick video I saw, they seem similar indeed, but I haven't played Thrive enough. I have only made it to a single-cell prokaryotic organism, lol (which is basically very close to the beginning of the game).
Happily, that's no longer the case these days. TDM was originally a mod, but despite keeping the name, it's now a standalone game using the open-sourced Doom 3 engine. The whole game is currently free without any purchases necessary!
Endless Sky -- open-source space game. I actually contributed to it back in the day; a date format option and a full-blown storyline about an author. Unfortunately the storyline is in development hell cause I lost motivation to work on it.
OpenTTD -- really awesome, with NewGRFs and mods you can have a somewhat "realistic" rail experience (as in, using actual real-life trains. Obviously a pixel game isn't the most "realistic" with graphics)
Widelands is a great strategy / building game. The gameplay and UI style is a niche - but that's one of the things I like about it. It's doing something different to most games.
(The gameplay is similar to Settlers 2; before that franchise changed direction.)
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But the open-source game I've spent the most time playing would be OpenXcom-extended, with xpiratez. That game is truly huge.
I haven't thought about this game since I was in junior high. Wow. I should look into it again since guitar hero and rock band have become so inaccessible. Used guitar controllers going for $150+. Fucking outrageous.
Xonotic (quake-esque FPS, IMO its like quake and halo had a FOSS child), Minetest (a voxel game engine, multiple games are available for it), and Mindustry (sandbox tower defense) are the only ones ive tried so far
NodeCore is another great Minetest game. I haven't been able to find a game that matches the feeling of discovery it provides as you learn about the rules of the world.
VCMI - it's re-written from scratch, open source, multiplatform Heroes 3 engine with many improvements and mods manager. It requires some files from the original game though.
Super Tux Kart (I play it on Android) is NOT one of them. The physics system is bad at some moments, the items aren't fun to use and some of them ruin the game. The overall game feels amateurish (in a bad way), but one thing that I like is the Windows Car and the drifting. Those are awesome.
I didn't see anyone mention Warzone2100 yet. An excellent RTS, with a neat research system and unit customisation, and fun campaign. They've recently added a couple of new campaigns I haven't played yet, and have enough ongoing dev work on skirmish/multiplayer that some AIs are listed as "X% win rate in AI matches".
It's definitely a work-in-progress title, but I have really enjoyed SuperTux Advance (AGPL-3.0 according to their github page). It's like SuperTux but with sliding, more playable characters, and more power ups. As of now it's probably my favorite OS game at the moment.
I don't know if it counts, but I think the source code of Freespace 2 was released eventually und a non-profit license. The community did some great things with it, especially the Blue Planet campaign.
Armagetron Advanced - a Tron light cycles clone that was a blast for a long time. They even released for free on steam. I've not played in a long time, but now want to jump back on
It's a time machine that teleports you to 3am the next day.
Sanmill
Basically nine man's morris, it's pretty fun trying to beat progressively harder AI. Each difficulty requires a different (better) strategy. It's like unlocking levels in a puzzle game.
Apotris is an excellent famous-block-stacking-game clone for the GBA (and other platforms), it has a version for Portmaster that will run on many if not all Linux handhelds like the RG35XX and similar, but will also run in any GBA emulator.
Andor's Trail - RPG where you search for your missing brother. Still under development, but there's a lot of content. It's convenient to fill a few spare minutes or waste hours.
Open source is not the same as source available. I'm not going to do a deep dive on definitions and licensing, but open source generally means that you are allowed to do what you want with it. It also usually implies that if the creator updates it, that updated code will also be shared.
The leaked Cyberpunk 2077 source code is from 2022 at the absolute latest (released 2024 from a hack done in 2022), is not open source licensed for re-use (meaning any use of it by people outside of CDPR is illegal), and they have released numerous patches, updates, and an entire DLC since.