Jump to content

The Southsider

  • entries
    81
  • comments
    767
  • views
    135,615

Chetiry

cd-w

8,191 views

As many of you will now know, I have been working on a new Atari 2600 homebrew title called Chetiry. This blog entry should hopefully clear us some of the confusion surrounding the project!

 

Chetiry is a tetromino matching game that should be familiar to most gamers. The original Chetiry project (Chetiry means 4 in Russian) was started by Zach way back in 2006. However, Zach retired from Atari 2600 homebrewing in 2009 with the Chetiry project still unfinished. I had been hoping to see Chetiry completed, and so I contacted Zach to ask if he would allow me to continue his work. Fortunately he agreed, and so I have been working on the project in my spare time over the last year, mostly on airplanes while travelling for my work!

 

There have been several other tetromino matching games for the Atari 2600. However, I wanted Chetiry to be as close to the original Gameboy version as possible, as this is my favourite version. The new Melody hardware also inspired me to include digitized music throughout the game, based on the Pitfall-2 technique.

 

I originally thought the project could be quickly completed, as Zach had already done a lot of the coding. However, I ended up rewriting the game code several times over to support the digitized music! The only original code remaining now is the neat 10 color kernel that Zach designed. The core game code is a little under 8KB, but with all of the music and artwork, the game now occupies around 48KB of cartridge space!

 

blogentry-6563-0-88333400-1302365084_thumb.png

 

The awesome artwork for Chetiry was designed by the prolific Nathan Strum. At one point in the project, he suggested doing a Gameboy-themed version of the game! This seemed like a good idea for a demo version, as the full game cannot be played in Stella. The Gameboy-style artwork was completed shortly before the beginning of April, and so one thing lead to another :)

 

The Gameboy-themed version of Chetiry will not be developed further, and so I have attached the source code and binaries to the end of this entry. The full version of Chetiry will have (at least) the following enhancements:

 

  1. Full color game grid
  2. Hiscore tables saved directly on the cart
  3. 4 game modes (Marathon, Sprint25, Sprint40 and Ultra)
  4. 6 digitized tunes
  5. Easter eggs!

Nathan has kindly produced a video of the current (full) version of Chetiry:

http://www.youtube.com/watch?v=ACsEhqHKbzA

 

Chetiry should be released on a cart sometime later this year. There is still a bit of programming required, and the cart label and manual have yet to be designed. As always, it will be released when it is ready :)

 

Chris



37 Comments


Recommended Comments



Thanks for posting the link - that is a really thorough analysis of Tetris! I did attempt to duplicate the gameboy timings and distributions for Chetiry, but there are probably lots of subtle differences. I haven't seen such obsession with the game since I saw this video:

 

Cheers,

Chris

Share this comment


Link to comment

I play the older lime green "gb rom" on my harmony sometimes. The original aa released game cart is truly remarkable. My high score is still pegged at 198k. So close to getting the fat rocket yet so far...

Share this comment


Link to comment

I tried to find the ROM but couldn’t. Is it available by any chance? Would love to try it on my Harmony cart, if compatible. As stated elsewhere I would also love a shop for ROMs. No need for full cartridges. :)

Share this comment


Link to comment

The full version was posted last year (link), but currently attachments are not visible due to forum upgrading. You have to wait a few days until the background conversion tasks complete.

Share this comment


Link to comment

The Stella emulator was recently upgraded to support Chetiry bankswitching.   You can play the full game by downloading the latest Stella and using the chetiry_NTSC_STELLA.bin (or chetiry_PAL_STELLA.bin) image from this page:

https://atariage.com/forums/topic/282280-chetiry-2600/

 

Note that you can't play Chetiry directly on the Harmony cartridge at this time.


Chris

  • Thanks 1

Share this comment


Link to comment

Ok, thanks for the heads up. So buying the cartridge is the way to go at the moment if I want to play it on real hardware. I'll put it on my wishlist. But it's good that I can test it on  Stella. 

  • Thanks 1

Share this comment


Link to comment

It should also work on the Retron 77 console using the unofficial firmware (based on the latest Stella).


Chris

Share this comment


Link to comment

Well, I was just ready to buy the cartridge, but: I can't! There is no 'Add to cart' button for Chetiry. Why? 

Share this comment


Link to comment
7 hours ago, root42 said:

Well, I was just ready to buy the cartridge, but: I can't! There is no 'Add to cart' button for Chetiry. Why? 

I think this means it is currently out of stock

 

Chris

Share this comment


Link to comment

Guest
Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...