falling-turnip VS LambdaHack

Compare falling-turnip vs LambdaHack and see what are their differences.


falling sand game with regular parallel arrays. (by tranma)


Haskell game engine library for roguelike dungeon crawlers; please offer feedback, e.g., after trying out the sample game with the web frontend at (by LambdaHack)
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falling-turnip LambdaHack
2 8
66 615
- 1.0%
0.0 6.5
almost 11 years ago 2 months ago
Haskell Haskell
BSD 3-clause "New" or "Revised" License BSD 3-clause "New" or "Revised" 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 falling-turnip. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-05-08.
  • Show HN: Making a Falling Sand Simulator
    3 projects | news.ycombinator.com | 8 May 2022
    If you want more performance, falling sand simulators can further be made parallel by implementing them using Margolus Neighbourhoods, as in Falling Turnip: https://github.com/tranma/falling-turnip

    The idea is that a single iteration divides the world into 2x2 squares and then applies effects sequentially within each square, but not between the squares. This means each square can be processed independently. In the next iteration, the division into squares shifts right and down by one cell each direction. This does mean you need more steps than in a sequential implementation, but I found it to be quite a principled approach to parallelizing cellular automata when I first read about it. One interesting side effect of this design is that falling particles end up being separated by blank space, as shown here: https://futhark-lang.org/static/falling-sand-2016.12.04.webm I wonder if that is fixable.

  • How To Make A Falling Sand Simulation?
    1 project | /r/Unity3D | 19 Apr 2021
    and here is a github project of a falling sand game written in Haskell https://github.com/tranma/falling-turnip


Posts with mentions or reviews of LambdaHack. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-12-17.
  • Release announcement: Sphere
    1 project | /r/roguelikedev | 22 Dec 2021
    Looks really cool! Here's how I do releases: https://github.com/LambdaHack/LambdaHack/issues/76
  • Sharing Saturday #393
    2 projects | /r/roguelikedev | 17 Dec 2021
  • Game design question: how to base item generation on character skill, but not promote artificial optimal play?
    1 project | /r/roguelikedev | 4 Sep 2021
    here's the failed commit: https://github.com/LambdaHack/LambdaHack/commit/930dfd46b949d1525e900b997137389a8092305b
  • [ANN] Monomer, a GUI library for Haskell
    11 projects | /r/haskell | 9 Aug 2021
    I've recently tried that and gave up (https://github.com/LambdaHack/LambdaHack/issues/248). Perhaps it's possible to statically link SDL2, but I learnt it's impossible to statically link the OpenGL and X11 libraries, so you end up with a partially statically linked binary (I didn't manage to obtain even that).
  • Getting Started...
    1 project | /r/roguelikedev | 15 May 2021
    I did some plotline sketches on the github wiki of my project, but never used them so far. Not much use from the other musings there, either. Instead I tweak the templates for procedural generation directly in the code (game content part of the code, to be precise) and get a lot of mileage out of that. The only page of the wiki I got lots of benefit from is the derivation of the simplified formula for calculating speed, distance and damage of projectile from their weight: https://github.com/LambdaHack/LambdaHack/wiki/Item-statistics#projectile-velocity-and-distance
  • Getting to 1.0
    1 project | /r/roguelikedev | 18 Apr 2021
    Around a decade. No, one release per 1-2 years. The differences are quite large, both gameplay and, even more, UI, in particular in using ready fornts, then custom fonts, then many fonts at once. See the changelogs (that's only for the egine, but that's where most of the changes are made): https://github.com/LambdaHack/LambdaHack/releases
  • Sharing Saturday #357
    5 projects | /r/roguelikedev | 9 Apr 2021
  • Allure of the Stars v0.10.2.0 is out
    1 project | /r/haskellgamedev | 9 Apr 2021

What are some alternatives?

When comparing falling-turnip and LambdaHack you can also consider the following projects:

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

rattletrap - :car: Parse and generate Rocket League replays.

Allure - Allure of the Stars is a near-future Sci-Fi roguelike and tactical squad combat game written in Haskell; please offer feedback, e.g., after trying out the web frontend version at

aeson-tiled - Aeson instances for Tiled map editor types

Nomyx - The Nomyx game

general-games - Haskell package with helpful structures for a variety of games

FunGEn - A lightweight, cross-platform, OpenGL-based 2D game engine in Haskell

monomer - An easy to use, cross platform, GUI library for writing Haskell applications.