When comparing Defold vs Roblox Studio, the Slant community recommends Defold for most people. In the question“What are the best 2D Lua game engines?” Defold is ranked 6th while Roblox Studio is ranked 11th. The most important reason people chose Defold is:
Defold uses Lua, which is regarded as an easy to learn language by most.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easy to learn
Defold uses Lua, which is regarded as an easy to learn language by most.
Pro Completely free of charge
Software and online dashboard are free of charge.
Pro Good combination of visual editing + code (Lua)
You can do a lot with drag and drop, but you're not limited -- the code (Lua, which is easy to learn) allows you more power than just visual editing usually gives you.
Pro Fast results
Going from idea to result is very important for the creative process.
Pro Visual editor
Pro Very performant
Being crossplatform it is important to work on low end devices.
Pro Easy and fast export for various platforms
Pro Great community
A very active and friendly community in forums.
Pro Source code available
You can download and modify the source code of the Editor and the engine for free.
Pro Collaborative
You can invite friends from the dashboard and create games together.
Pro Hot reload
It allows you to change scripts in a game while it is running live. Common use-cases is to tweak gameplay parameters or to perform debugging on a running game.
Pro It's easy to use
If you want to find an object in the workspace just use workspace or game. In Unity (for example) it's much more complicated.
Pro Easy multiplayer
Multiplayer is set up on project load.
Pro Easy to use for children
It's the entrance to game development. But it will be likely, that you abandon Roblox as soon you turn old enough.
Pro AI Scripting
Pro No serverhosting required
Pro No website needed
Roblox hosts a very basic website to play your game for free.
Pro It’s fast
Scripting can take maybe only 30 minutes to get some real work going while others take hours.
Cons
Con No support for Linux
With the new-Bit client, Roblox went out of their way to make it impossible for Linux users.
Con No tutorial system in place to teach new dev's the basics
Con Can only be published on Roblox
You can't export your game to Steam, Epicgames, Snapcrft or Flathub.
Con "Potato Servers"
Roblox Servers aren't that good in performance. Also, a server can officially only handle 100 players at the time. They tried 200 player severs, but abandoned this idea.
Con Players need to be online at all times to play your games
Con Can't selfhost servers
You can only use the Roblox servers.
Con Can't post links in games
The Roblox TOS only allow Links to certain platforms like Guilded.
Con High tax rate
Be ready to give 75% of your earnings to Roblox.