
Zero-K
Flare (game)
Unity
Unreal Engine
CryENGINE
Godot Engine
BuildBox
Spring is a versatile 3D RTS game engine.

Mentimeter
Kahoot!
Poll Everywhere
AhaSlides
Glisser
Wooclap
Crowdpurr
Slido is the ultimate Q&A and polling platform for live and virtual meetings and events. It offers interactive Q&A, live polls and insights about your audience.

Which is more popular?
Based on our record, Spring Engine seems to be a lot more popular than Sli.do. While we know about 26 links to Spring Engine, we've tracked only 1 mention of Sli.do.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | springrts.com | sli.do |
| Pricing | ||
| Platforms | — | |
| Company | — | 2012 |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Spring Engine yet.
Overall verdict
Why this product is good
Recommended for
Sli.do is recommended for event organizers, educators, corporate trainers, webinar hosts, and conference managers. It is ideal for those looking to increase engagement in hybrid or virtual settings and for anyone seeking to make meetings and events more interactive and participant-focused.
Walkthroughs and reviews on video.
Source Audio Ventris - Outboard Spring Engine - Demo & Review
What is Slido
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Spring Engine and Sli.do. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Spring Engine is a free, open-source engine and real-time strategy (RTS) game dev platform. Supported in Windows, Linux, and macOS, it’s used to create not only RTS games but also games in multiple other genres.
Using the specific code, Lua, Spring engine makes nearly everything customizable. For control freaks like me, that is a godsend! If you are a fan of RTS gems like Age of Empires or Halo Wars, Spring engine might be...
The plans are not the same. Slido Professional has moderation, branding and multiple rooms, among other things, and Mentimeter’s conference pack has Excel export and editing together with your team. klapp has no...
Yet another highly rated tool, Slido helps you build interactive polls, quizzes or surveys. The tool is scalable and can cater their services to both individuals, and businesses. The participants don’t need to...
Slido shares many features with the other tools on this list. But it also lets your audience prioritize questions for Q&A sessions by upvoting/downvoting them – a concept that Reddit users will be familiar with. Also,...
Recommendations tracked on public social media and blogs since March 2021.


Built on the Recoil engine: https://recoilengine.org/ Which is a fork of the Spring RTS engine: https://springrts.com/. - Source: Hacker News / 5 months ago
Huh. I'm familiar with the Spring RTS FOSS project (https://springrts.com) which started as a reimplementation of TA, and of course Planetary Annihilation, but not "Beyond All Reason" - do you have an authoritative link? - Source: Hacker News / 11 months ago
Seems the support would be a realistic feature, though, because it's based on https://springrts.com/ that does support MacOS X. - Source: Hacker News / almost 3 years ago
Does anyone know of a open source self-hosted alternative to sli.do? Source: about 5 years ago
When comparing Spring Engine and Sli.do, you can also consider the following products.


a web-based polling tool for workshops, conferences & events
Compare Mentimeter to Spring Engine or Sli.do:

Flare (Free Libre Action Roleplaying Engine) is a simple game engine built to handle a very...
Compare Flare (game) to Spring Engine or Sli.do:

Kahoot! makes it easy to create, play and share fun learning games in minutes—for any subject, in any language, on any device.
Compare Kahoot! to Spring Engine or Sli.do:


Audience response system that uses mobile phones, twitter, and the web. Responses are displayed in real-time on gorgeous charts in PowerPoint, Keynote, or web browser.
Compare Poll Everywhere to Spring Engine or Sli.do: