RT @MattThorson: TowerFall news 3/3: TowerFall Ascension and Dark World are coming to XBox One! No release date yet, but I'm playing it and… (Yesterday)

RT @MattThorson: TowerFall news 2/3: I finally released the official 8-player TowerFall mod! It's insane t.co/NhCCXhBSlO (Yesterday)

RT @MattThorson: TowerFall news 1/3: A great recap video from 3rd TowerFall World Championship at @IndieOlympics :D (by @MllePilgrim) https… (Yesterday)

@theBanov @djcoreynolan @Travel_Pillow ohhhh that is the sweetest thing <3 (2 days ago)

@TeddyDief 4x cut?? (3 days ago)

@biphenyl I'll have to work on my leading with the lightning gun but I think its doable (3 days ago)

@biphenyl let me know when it has internet (3 days ago)

@jswiatek Sure, can work out the details via email: hi@kpulv.com (4 days ago)

@staticsteven ah it might be sampling from outside the bounds. Maybe somehow clamp it's source pixel to the bounds of the texture. (4 days ago)

@staticsteven I add the displacement at explosions and they scale up and fade out over time (4 days ago)

@floatvoid LEVEL 60 ZEBRA ROBOMANCER (5 days ago)

RT @cmuratori: I propose a different name for "Software as a service" that is more accurate: "Software as a tax." (5 days ago)

RT @TomFulp: Gone In A Flash - Kickstarter for a documentary about the Flash boom that changed the internet. Check it out! t.co/rKx… (5 days ago)

@TimothyFitz you just can't win. just get one of those 800lb widescreen CRT monitors~ (6 days ago)

@ADAMATOMIC @TommyRefenes @neilcic hahhaha this is what 11 year old kyle thought was going to happen when they said fire at will (6 days ago)

@konjak yay slot machines (6 days ago)

@TyrusPeace twitter is a fickle beast (7 days ago)

@ADAMATOMIC top 10 blow ups of 2016 (8 days ago)

@nnnehpe haha yeah maybe (8 days ago)

I hope the 3 people in the world that actually get the secret ending in sky sisters appreciate all the art I'm doing for it (9 days ago)

posts tagged with: game jam

2014 - 11 - 13 / 4:07 pm / general

Super Sky Sisters Timelapse

Super Sky Sisters Timelapse

Make sure to watch it in full 1080p at 60 frames per second, yeah!

The game isn't out yet, but you can watch me make it at hyper speed over the course of 48 hours. The game ended up getting a bunch of awards at the game jam, including second place overall which is pretty cool!

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2014 - 11 - 12 / 3:20 pm / general

Dev Log: Game Jammin

Dev Log: Game Jammin

Whoops I've totally neglected my blog for the past week or so. I spent last week working on some minor Otter things, as well as getting ready for a local game jam. Then I jammed for 48 hours last weekend!



Here's some shots of what I ended up making:





I also recorded a timelapse, and that'll be coming pretty soon!


2014 - 9 - 12 / 12:49 pm / general

Game Jam Procedural Generation Part III

Game Jam Procedural Generation Part III

In the last episode of Game Jam Procedural Generation I talked a lot about generating the base of the platforming level in Starforger II, and carving out rooms into the ground of the level.


So now we have a basic level that with a bunch of empty rooms below the ground. The next step is going to be connecting those rooms together. To do this I built a quick class called a TunnelSnake (tunnel snakes rule) to dig tunnels from any point on the map to any other point. Here's the full source of that class:

class TunnelSnake {
public int X;
public int Y;
public int Width = 1;
public int Height = 2;

public int EndX;
public int EndY;

int verticalSteps;
int verticalStepMax = 4;
int forceHorizontal = 0;
int forceHDirection = 1;

public TunnelSnake(int x, int y, int endX, int endY) {
X = x;
Y = y;
EndX = endX;
EndY = endY;

public void Dig(GridCollider grid) {
while (X != EndX || Y != EndY) {
grid.SetRect(X, Y, Width, Height, false);

if (Rand.Chance(50) || forceHorizontal > 0) {

if (forceHorizontal > 0) {
X += forceHDirection;
Height = 2;
X = (int)Util.Clamp(X, 2, grid.TileColumns - 2);
else {
X += Math.Sign(EndX - X);

if (forceHorizontal == 0) {
verticalSteps = 0;
else {

Y += Math.Sign(EndY - Y);

if (verticalSteps == verticalStepMax) {
forceHorizontal = Rand.Int(3, 15);
forceHDirection = Rand.Sign;

if (Rand.Chance(50)) {
if (Rand.Chance(50)) {
Width += Rand.Sign;
Width = (int)Util.Clamp(Width, 1, 5);
if (Rand.Chance(50)) {
Height += Rand.Sign;
Height = (int)Util.Clamp(Height, 2, 6);

read more

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2014 - 9 - 9 / 12:45 am / games

Starforger II

Starforger II

A few weeks ago I went to a local game jam in Phoenix! The them was discovery and I set out to make some kind of space exploration procedural thing. The final result was a game I named Starforger II. There is no Starforger I, but maybe I can make a prequel someday.

Starforger II v1.0 - Windows (92mb)

Whoa what's with the file size? Well this game has a lot of weird sounds in it, and maybe I can figure out how to get them more compressed, but right now they take up a lot of space.

The game uses Enter, X, C, and the arrow keys, or a USB game controller (although the game is designed around the 360 controller, so using one of those would be ideal.)






2014 - 9 - 6 / 2:51 pm / general

Game Jam Procedural Generation Part II

Game Jam Procedural Generation Part II

In the last episode of Game Jam Procedural Generation I talked about the "outer layer" of my procedural generation code for my yet to be released game jam game. After the outer layer of stuff has been generated, that can be used to inform the "inner layer" of the procedural generation. So the outer layer in this case is the galaxy that the player can explore in their ship, and the inner layer is the actual side scrolling platformer level that they will explore.


Where do we even begin? First keep in mind that I'm using Otter for all of this stuff, so if you see functions and code that looks totally unfamiliar, it's probably an Otter thing. Also keep in mind that all of this code was written during a 48 hour game jam, so it ain't pretty. I'm just going to be sharing big snippets of code and hopefully try to explain what is happening in each one.

In the last step I talked about how I create a config object to hold all of the possible fields that will be used to generate the level. Here's what that looks like:

class ScenePlatformingConfig {
public int Width;
public int Height;

public int ShipStartOffset;

public int TreasureDirection;
public int TreasureDistanceOffset;

public int GroundLevelOffset;

public bool Explored;
public bool Pillaged;

public int Jagginess;

public int Platforms;

public int DecaySpots;
public int DecayChance;

public int IslandSpots;
public int IslandSize;

public int Rooms;

public string Name;

public int BreakableChance;

public int CreatureChance;

Pretty straight forward. Just a simple class that will hold a bunch of values that can be then passed to the classes that generate the platforming level. read more

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2014 - 8 - 28 / 4:31 pm / general

Game Jam Procedural Generation Part I

Game Jam Procedural Generation Part I

My latest game jam game still isn't quite ready for release, and unfortunately at this point it will have to wait until after PAX, but I can still share some source code from it that will maybe help people out when it comes to procedurally generating things in their games.

The premise of my jam game is that you play as a space explorer type person who is flying a ship around the galaxy searching for planets with shiny ore on them. When the game starts the entire galaxy is procedurally generated. This is a fancy way in saying that a bunch of random things happen and hopefully it works out.

for (var i = 0; i < 99; i++) {
var size = Rand.Int(8, 64);
planetSupply -= size;
if (planetSupply <= 0) {
size = 8;
var x = Rand.Float(Width);
var y = Rand.Float(Height);
var d = new Destination(x, y, size);


while (d.CloseToOtherDestination()) {
d.X = Rand.Float(Width);
d.Y = Rand.Float(Height);

This is my CreatePlanets() function for the map scene in the game. What this does is just creates 99 planets and places them in the scene at random X and Y coordinates. The map scene has a Width and Height defined earlier in the game (in this case I believe its 5000 x 5000 pixels.)

The scene also has a planetSupply field that is defined earlier. Whenever a planet is generated, its size is subtracted from the planetSupply. If the planetSupply is less or equal to 0, all planets created from that point on will be the smallest possible size. This was to control how many huge planets were created in the scene. read more

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Hi! My name's Kyle, and I make video games most of the time in Denver, Colorado. Here you will find my thoughts, games, websites, doodles, and other stuff like that. I worked on Snapshot, Offspring Fling, and a whole bunch of other games. I also created and maintain Otter, a 2d game making framework. If you want to get a hold of me use the form on the bottom of the page, leave a comment, or just tweet at me. I try to post three times a week. Thanks for stoppin' by! You're the coolest.

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Do you want to make a Let's Play of one of my games, or a just a video featuring footage of my games? You have my full permission to do so! Even if you are monetizing your videos, you still have my full permission to use any footage from any of my games. Go for it!


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