+sramirez2008 Posted January 3 Share Posted January 3 @ZeroPage Homebrew Watching your latest stream and now you’ve gone and done it. The Double Score Dungeon t-shirt is a must have! 😉 Btw, I had Blip. You and @littaumhave brought back a flood of happy memories. Happy New Year everyone! 4 Quote Link to comment Share on other sites More sharing options...
+johnnywc Posted January 3 Share Posted January 3 18 minutes ago, sramirez2008 said: @ZeroPage Homebrew Watching your latest stream and now you’ve gone and done it. The Double Score Dungeon t-shirt is a must have! 😉 Did I miss the DSD T-shirt? 👀 I didn't get to watch the entire replay... 18 minutes ago, sramirez2008 said: Btw, I had Blip. You brought back a flood of happy memories. I had Blip too - great memories for sure! 18 minutes ago, sramirez2008 said: Happy New Year everyone! Same to you Steve... Happy New Year everyone! 🎉 🎆 3 Quote Link to comment Share on other sites More sharing options...
+sramirez2008 Posted January 3 Share Posted January 3 2 minutes ago, johnnywc said: Did I miss the DSD T-shirt? 👀 I didn't get to watch the entire replay... Tanya was wearing the shirt. Quote Link to comment Share on other sites More sharing options...
+johnnywc Posted January 3 Share Posted January 3 4 minutes ago, sramirez2008 said: Tanya was wearing the shirt. LOL I was re-watching the wrong show! 2 Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted January 3 Share Posted January 3 @ZeroPage Homebrew Where did you find the Zkeep ROM? Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted January 3 Author Share Posted January 3 18 minutes ago, Thomas Jentzsch said: @ZeroPage Homebrew Where did you find the Zkeep ROM? It took some looking but it's part of the compilation release of all the demos/games shown at Silly Venture 2023 WE. You can find the link on the 2023 Atari 2600 Games list. - James 1 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted January 3 Author Share Posted January 3 4 hours ago, johnnywc said: Did I miss the DSD T-shirt? 👀 I didn't get to watch the entire replay... Here's a screenshot of the shirts we got each other for Christmas! She's been wanting the DSD shirt for years ever since she first played your game so I decided to make a one off for her! 🙂 - James 1 Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted January 4 Share Posted January 4 9 hours ago, ZeroPage Homebrew said: It took some looking but it's part of the compilation release of all the demos/games shown at Silly Venture 2023 WE. You can find the link on the 2023 Atari 2600 Games list. - James You mean this one? https://www.sillyventure.eu/en/news 1 1 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted January 4 Author Share Posted January 4 10 hours ago, Thomas Jentzsch said: You mean this one? https://www.sillyventure.eu/en/news Thank you for the more direct link to the download, I swear I looked on that exact page in my search and didn't see it. 🙂 - James Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted January 4 Share Posted January 4 29 minutes ago, ZeroPage Homebrew said: Thank you for the more direct link to the download, I swear I looked on that exact page in my search and didn't see it. 🙂 I found it a bit hard to find too, that's why I shared the link. IMO this game clearly deserves a release on cart. @Albert are you listening? 2 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted January 4 Author Share Posted January 4 6 minutes ago, Thomas Jentzsch said: I found it a bit hard to find too, that's why I shared the link. IMO this game clearly deserves a release on cart. @Albert are you listening? 100% agree, this game is astounding! - James Quote Link to comment Share on other sites More sharing options...
Albert Posted January 4 Share Posted January 4 16 minutes ago, Thomas Jentzsch said: I found it a bit hard to find too, that's why I shared the link. IMO this game clearly deserves a release on cart. @Albert are you listening? I am. You're talking about Zkeep? ..Al 1 Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted January 4 Share Posted January 4 18 minutes ago, Albert said: I am. You're talking about Zkeep? Yup. 1 Quote Link to comment Share on other sites More sharing options...
Thomas Jentzsch Posted January 6 Share Posted January 6 (edited) I just watched the latest show and where you talked about piracy ("sharing"). So far I haven't seen any effective protection besides watermarking (except special hardware). Which is even possible for a simple 4K game. Just giving games a simple serial number can easily be broken by comparing two ROMs. But with watermarking, you are changing random bits all over the ROM. If you then compare two ROMs, you will only find the bits which are different between the two ROMs. But each watermarked ROM will share a number of identical bits with each other ROM. So even if you eliminate at the different bits, the remaining watermark bits will still be sufficient to trace back a pirated ROM. This not only works for two ROMs, but depending on the number of watermarked bits, for multiple ROMs being compared. And the people pirating can never be sure they sufficiently removed enough watermarks. So if a pirated ROM shows up, it would be possible to trace it back to the customer who originally bought it. Finding non-harmful bits for 2600 ROMs is easy. There are a many unused address bits for the TIA, RIOT or ROM space. Each of these bits can be randomized. E.g. each JMP address has three bits (bits 13..15) which can be used for watermarking (same for tables or pointers in the code), each STA GRP0 has one bit (bit 6, same for all TIA writes). Color values have one unused bit too, unused ROM has 8 bits. And so on. Some years ago, I did an experiment with my own game Three.s and easily found ~2,500 watermark bits. Some math: Chances that a watermark bit is different between n ROMs is (1 - 0.5^(n-1)), so for e.g. five ROMs is it 93.75%. Given the 2,500 Three.s watermark bits, ~156 (2,500 * (1 - 93.75%)) bits will still not be identified. Which is still way more than sufficient for identifying the origin of all five ROMs used to "clean" the ROM. So to "clean" such a ROM successfully this way, you would have to buy more than five ROMs. As of now the process is manual, the developer has to use watermark macros if his code (e.g. WM_JSR address) and the publisher has to assemble the ROM using a different seed per customer. But I am sure everything could be automated. One could create a patch address & bits file by running the ROM through a modified emulator. And this patch file could be applied to each ROM (again, with varying seeds). Edited January 6 by Thomas Jentzsch 3 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted January 6 Author Share Posted January 6 2 hours ago, Thomas Jentzsch said: Finding non-harmful bits for 2600 ROMs is easy. There are a many unused address bits for the TIA, RIOT or ROM space. Each of these bits can be randomized. E.g. each JMP address has three bits (bits 13..15) which can be used for watermarking (same for tables or pointers in the code), each STA GRP0 has one bit (bit 6, same for all TIA writes). Color values have one unused bit too, unused ROM has 8 bits. And so on. Some years ago, I did an experiment with my own game Three.s and easily found ~2,500 watermark bits. I never even thought of sub-byte watermarking, that's very clever. Thank you for the explanation of how this can be accomplished if a developer wished to implement it. After reading what you've typed above it triggered a memory of a post you explained it in when Circus Convoy was released. - James Quote Link to comment Share on other sites More sharing options...
+Al_Nafuur Posted January 11 Share Posted January 11 Training device for Atari and Sprite: 3 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted January 11 Author Share Posted January 11 6 hours ago, Al_Nafuur said: Training device for Atari and Sprite: Hahah, NICE! Now we just need two ten-barrel devices that can be hooked up via 9pin interface for auto-scoring and we've got the first ever Atari 2600 game for cats! - James Quote Link to comment Share on other sites More sharing options...
+Nathan Strum Posted January 11 Share Posted January 11 8 hours ago, Al_Nafuur said: Training device for Atari and Sprite: It's cute that the owner somehow thinks they're training the cat, when clearly the opposite is happening. 2 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted January 11 Author Share Posted January 11 50 minutes ago, Nathan Strum said: It's cute that the owner somehow thinks they're training the cat, when clearly the opposite is happening. Atari and Sprite have us VERY well trained to give them love and treats with their fluffy cuteness and baby kitten cries, we can't resist their clever manipulation! - James 5 Quote Link to comment Share on other sites More sharing options...
Albert Posted January 11 Share Posted January 11 47 minutes ago, ZeroPage Homebrew said: Atari and Sprite have us VERY well trained to give them love and treats with their fluffy cuteness and baby kitten cries, we can't resist their clever manipulation! - James Awwww, that's such a great photo of them!!! ..Al 1 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted January 11 Author Share Posted January 11 11 minutes ago, Albert said: Awwww, that's such a great photo of them!!! ..Al Thank you so much, they're so cute when they're sleeping. ❤️ - James 1 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted January 11 Author Share Posted January 11 ZPH PLAYS FOUR PLAYER SIMULTANEOUS LIGHT GUN GAME DUCKS AWAY FOR THE ATARI 7800! Fri Jan 12, 2024 | LIVE @ 2PM PT | 5PM ET | 10PM GMT WATCH LIVE: https://twitch.tv/zeropagehomebrew/ WATCH LATER: https://youtube.com/zeropagehomebrew/ There's a FOUR PLAYER SIMULTANEOUS Light Gun game for the 7800? Yes! Tomorrow on ZeroPage Homebrew all four ZPH co-hosts will be all aiming our sights at the CRT with Ducks Away! We'll also be playing a ton of Atari 8-Bit four player simultaneous games using the MultiJoy8! Plus we'll take advantage of having all four people in the studio and get in a quick game of M.U.L.E.! See you live in the chat on Twitch tomorrow for this special show at a special time! Games: Ducks Away (2023 WIP | 7800) by Blake Smith @SmittyB Mashed Turtles (2011 | A8) by František Houra @Fandal (Code), Zdeněk Eisenhammer @pseudografx (Graphics, Music, SFX) Shot'em All (2002 | A8) by Radek Sterba @raster/c.p.u. Helicops (2013 | A8) by Nils Feske, František Houra @Fandal, Radek Sterba @raster/c.p.u., Adam Wachowski @+Adam+ Sails of Doom (2018 | A8) by Antonin Holik @R0ger Dynakillers Unchained (1997 | A8) by GMG (Globe, Marco, Goldmaster), Martin Šimeček @matosimi M.U.L.E. (1983 | A8) by Ozark Softscape / Danielle Bunten Berry 5 Quote Link to comment Share on other sites More sharing options...
samwars95 Posted January 14 Share Posted January 14 On 1/11/2024 at 5:33 PM, ZeroPage Homebrew said: ZPH PLAYS FOUR PLAYER SIMULTANEOUS LIGHT GUN GAME DUCKS AWAY FOR THE ATARI 7800! Fri Jan 12, 2024 | LIVE @ 2PM PT | 5PM ET | 10PM GMT WATCH LIVE: https://twitch.tv/zeropagehomebrew/ WATCH LATER: https://youtube.com/zeropagehomebrew/ There's a FOUR PLAYER SIMULTANEOUS Light Gun game for the 7800? Yes! Tomorrow on ZeroPage Homebrew all four ZPH co-hosts will be all aiming our sights at the CRT with Ducks Away! We'll also be playing a ton of Atari 8-Bit four player simultaneous games using the MultiJoy8! Plus we'll take advantage of having all four people in the studio and get in a quick game of M.U.L.E.! See you live in the chat on Twitch tomorrow for this special show at a special time! Games: Ducks Away (2023 WIP | 7800) by Blake Smith @SmittyB Mashed Turtles (2011 | A8) by František Houra @Fandal (Code), Zdeněk Eisenhammer @pseudografx (Graphics, Music, SFX) Shot'em All (2002 | A8) by Radek Sterba @raster/c.p.u. Helicops (2013 | A8) by Nils Feske, František Houra @Fandal, Radek Sterba @raster/c.p.u., Adam Wachowski @+Adam+ Sails of Doom (2018 | A8) by Antonin Holik @R0ger Dynakillers Unchained (1997 | A8) by GMG (Globe, Marco, Goldmaster), Martin Šimeček @matosimi M.U.L.E. (1983 | A8) by Ozark Softscape / Danielle Bunten Berry Hi, really love your content ! I don't know where to find the escape from mars game from your january 5th stream. Can you help me ? 1 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted January 14 Author Share Posted January 14 1 hour ago, samwars95 said: Hi, really love your content ! I don't know where to find the escape from mars game from your january 5th stream. Can you help me ? Thank you so much for watching the stream! 🙂 You bet! You can find ordering information on the developer's Zarkstars FB page on this post. - James 1 Quote Link to comment Share on other sites More sharing options...
+ZeroPage Homebrew Posted February 2 Author Share Posted February 2 6th ANNUAL ATARI HOMEBREW AWARDS LIVE NOMINATION ANNOUNCEMENTS AND VOTING STARTS TOMORROW! Fri Feb 2, 2024 | LIVE @ 12PM PT | 3PM ET | 8PM GMT WATCH LIVE: https://twitch.tv/zeropagehomebrew/ WATCH LATER: https://youtube.com/zeropagehomebrew/ TOMORROW ZeroPage Homebrew will announce the nominees for very best games of the year as voted on by the AHA Nomination Committee! Also, VOTING OPENS in the AtariAge Forums where YOU make your voice heard on your favourite games of the past year! MORE INFO: https://forums.atariage.com/topic/356719-6th-annual-atari-homebrew-awards-voting-information-discussion/ Huge thank you to our amazing sponsor AtariAge for helping make this event happen! Award Categories: Best Atari 2600 Homebrew (Original) Best Atari 2600 Homebrew (Port) Best Atari 2600 Homebrew ≤ 4K (Original + Port) Best Atari 2600 Graphics (Original) Best Atari 2600 Graphics (Port) Best Atari 2600 Music + Sound (Original) Best Atari 2600 Music + Sound (Port) Best Atari 2600 WIP (Original) Best Atari 2600 WIP (Port) Best Atari 7800 Homebrew (Original + Port) Best Atari 7800 WIP (Original) Best Atari 7800 WIP (Port) Best Atari 8-Bit/5200 Homebrew (Original) (NEW!) Best Atari 8-Bit/5200 Homebrew (Port) (NEW!) Best Atari 8-Bit/5200 WIP (Original) (NEW!) Best Atari 8-Bit/5200 WIP (Port) (NEW!) Best Atari Lynx Homebrew Best Atari Lynx WIP Homebrew Best Atari Jaguar Homebrew Best Atari Jaguar WIP Homebrew Best Atari Homebrew Packaging Lifetime Achievement Award (Voted by Nomination Committee) See you in the Twitch chat tomorrow for the reveal! 3 Quote Link to comment Share on other sites More sharing options...
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