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r/SpaceflightSimulator

76.2K members. The best post we have captured here reached 244 upvotes, which works out to 3 per 1,000 members.

3peak upvotes per 1,000 members
76.2Kmembers
244best post
57most comments
300posts we track

Open r/SpaceflightSimulator on Reddit ↗

What actually lands here

The mix of post types among everything we have captured. Posting a link where almost nothing but images lands is wasted effort, and this is the fastest way to see it.

30% 26% 25% 10%
Image 30% Video 26% Gallery 25% Text 10% Question 5% Link 3%

The topics it labels

Flairs are the community's own categories, and the closest thing a subreddit has to telling you what it wants.

Original Build 99 Recreation 44 Original Mission 40 Discussion 25 Question 20 Free Version 18 Bug/Issue 13 Blueprint Editing 9 Modding 9 SFS Art/Concept 8

What the ceiling looks like

The biggest posts we have captured here. Links go to the original on Reddit.

Transformers, IN SFS??

↑ 244 💬 31 video 2026

Orbital Collision!? :O

↑ 220 💬 32 video 2026

I'm so proud of how close I got my flat panel clouds to looking like they are volumetric.

↑ 178 💬 22 video 2026

Meme Mondays

↑ 156 💬 5 video 2026

What year do you think SFS 2 will release?

↑ 152 💬 51 image 2026

Autonomous Launch to Orbit

↑ 143 💬 18 video 2026

31 tons to Mars

↑ 132 💬 21 video 2026

I just started SFS 🥰🥰 how do I get to the moon?

↑ 98 💬 24 image 2026

Automatic Rocket launch, flip, and land

↑ 94 💬 18 video 2026

I built a tiny satellite that kinda looks like a tic tac :)

↑ 91 💬 30 image 2026

Communities its size

Within four times the member count either way, so the comparison is fair. Sorted by upside.

r/SpaceflightSimulator, in numbers

Answered from the posts ViralHunt holds from this community, not from Reddit's own about page.

How many members does r/SpaceflightSimulator have?
r/SpaceflightSimulator has about 76.2K members. ViralHunt has tracked 300 of its posts; the biggest reached 244 upvotes, which is 3 per 1,000 members.
What is the most viral post on r/SpaceflightSimulator?
"Transformers, IN SFS??" reached 244 upvotes and 31 comments in 2026, the highest score among the posts we hold from r/SpaceflightSimulator.
What subreddits are similar to r/SpaceflightSimulator?
Communities of a comparable size we track: r/greenland, r/FreeFolkNation, r/InvictaSolaris, r/Leakednews, r/LetsDiscussThis, r/stevehofstetter.
What kind of posts do best on r/SpaceflightSimulator?
Of the posts we hold, 30% are image posts and 26% are video posts.
When is the best time to post on r/SpaceflightSimulator?
Across 300 timestamped posts we hold, the slots whose posts averaged the highest score are Sunday at 09:00 UTC (52 avg upvotes), Thursday at 17:00 UTC (51 avg upvotes), Wednesday at 09:00 UTC (47 avg upvotes). The busiest day is Monday. For Reddit as a whole, see the best time to post on Reddit page.
How many upvotes does a post need to reach the top of r/SpaceflightSimulator?
The 20th-best post we hold from r/SpaceflightSimulator has 46 upvotes, so that is roughly the bar for the top twenty. We captured 300 posts from it in the last 30 days.

See what is climbing here before you write

ViralHunt tracks Reddit and eight other networks, records how every post grows, and puts what is taking off in front of your team in one list.

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Every figure here is what ViralHunt has captured from r/SpaceflightSimulator, not everything the community has ever posted. We deliberately do not publish an average score: our sample is weighted toward a community's best posts, so an average would be flattering and wrong. Peak per 1,000 members is computed the same way for every community listed. See how we measure.