FunGEn VS rattletrap

Compare FunGEn vs rattletrap and see what are their differences.


A lightweight, cross-platform, OpenGL-based 2D game engine in Haskell (by haskell-game)


:car: Parse and generate Rocket League replays. (by tfausak)
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FunGEn rattletrap
2 3
70 130
- -
3.2 8.2
over 1 year ago 14 days ago
Haskell Haskell
BSD 3-clause "New" or "Revised" License MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of FunGEn. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-06-07.


Posts with mentions or reviews of rattletrap. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-02-03.
  • Help with Custom Decals in replays
    3 projects | | 3 Feb 2022
    This is the one (rattletrap) that can convert it back to replay as well (harder to read):
  • how did i miss it in the replay?
    1 project | | 20 Feb 2021
    Ah I see that's true. There is this (GitHub)[] that lets you edit stuff in replays. I haven't really fiddled too much with it, I really don't have a reason to edit replays. My speculation on the programming is that it uses AI techniques to assume what action you are going to do next based on your prior movements and tries to reconcile it in the event of latency mitigation or an error on their end.
  • Change names in rocket league replay
    1 project | | 21 Dec 2020
    But you need to first convert the replay to json, and then you can start to replace stuff. Then convert it back and it works. There are softwares that does the converting. When I was experimenting with those I tried 3 different replay parsers and I liked this the most:

What are some alternatives?

When comparing FunGEn and rattletrap you can also consider the following projects:

aeson-tiled - Aeson instances for Tiled map editor types

Carp - A statically typed lisp, without a GC, for real-time applications.

LambdaHack - Haskell game engine library for roguelike dungeon crawlers; please offer feedback, e.g., after trying out the sample game with the web frontend at

Monadius - 2-D arcade scroller

chessIO - Fast haskell chess move generator library and console UCI frontend

reflex-sdl2 - A minimal host for sdl2 based reflex apps.

werewolf-slack - A chat interface for playing werewolf in Slack

ActionKid - A video game framework for haskell

tateti-tateti - Meta tic-tac-toe ncurses game.

Hipmunk - Haskell binding for Chipmunk, 2D physics engine.


Nomyx - The Nomyx game