SlifkerGames Logo

SlifkerGames Logo


Ja-Ja-Jiggy Jigsaw Puzzles: Pete Slifker Photography

Study Whatty: Ja-Ja-Jiggy Jigsaw Puzzles (Picture 1)


Jungles of Maxtheria

Jungles Of Maxthera (Picture 1)


Low-Joe:  Reverse Blackjack

Low-Joe Reverse Blackjack (Picture 1)


Origins of Maxtheria

Origins of Maxtheria - 1


Poker Dealer's Toolkit

Poker Dealer's Toolkit PDTK (Picture 1)


Space Bombardiers (2D/3D)

Space Bombardiers (Picture 1)


Study Whatty:
IATA/ICAO Airport Codes

Study Whatty: IATA-ICAO (Picture 1)


Study Whatty:
Spanish to English

Study Whatty: Spanish to English (Picture 1)


Study Whatty:
Poker Drills

Study Whatty: Poker Drills (Picture 1)



"Origins of Maxtheria" (Trailer)





"Jungles of Maxtheria"





      Some of SlifkerGames' apps are now live on the Google Play Store (Android).  This fixes issues that made them non-compliant with some of the recent Play Store guidelines.  The reason is that they constantly change things, so developers must keep constaltly change things too.  Unfortunately, this also means that your saved data is no longer good.  You will have to delete your saved sata on your Android device, delete the app, redownload the app and reinstall the app.  Sorry about that.  This does not apply to Poker Dealer's Toolkit or LowJoe.

      In Android 13 (other versions may be slightly different), click on 'settings' (this is the gear icon at the top of sceen), click on 'apps', click on the name of the game, click on 'storage', click on 'clear cache', click on 'clear data', click on 'storage' at the top of the screen to go back one screen, click on 'uninstall'.  Then redownload and reinstall the game.  Finally, follow the instructions that come next.  Your 'pro store' should look like picture D when all is done and good.


     To see if your app's data is good or bad, do this.  From the main menu, click on the 'pro store' button.  Picture A.

A) 'Pro Store' Button (From Main Menu of Any of Our Apps.)

IAP-Pro Store


      Next, when inside the app's 'pro store', see which of the following three pictures it looks like:  picture B, C or D.  If it looks like picture D, then you are good.

B) Old IAP 'Pro Store' (You Must Now Delete Data and Reinstall App.)

(You have old version of the app and data is bad.)



C) New IAP 'Pro Store' (You Must Now Delete Data and Reinstall App.)

(You have new version of app but data is bad.  The 'restore' button is not shown.)

IAP-No Restore Bar


D) New IAP 'Pro Store' (This is what it should look like.)

(You have the new version of the app and the data is good.)



      If your 'pro store' looks like picture B, then that is the old 'pro store'.  It also means you have an old version of the app.  You will need to follow the instructions to clear out any data on the Android device and then reinstall the app.  Note, this will also delete any saved games.  Sorry about that.

      If your 'pro store' looks like the picture C, then you have the updated app version.  However, the 'pro store' button doesn't do anything after clicking on it and the 'restore' bar is not there.  You will need to follow the instructions to clear out any data on the Android device and then reinstall the app.  Note, this will also delete any saved games.  Sorry about that.

      If your 'pro store' looks like the picture C, then you are good.  You want your 'pro store' to look like the picture with the two bars.


      If you have previously purchased the app, then the 'sold' tag will be shown and the price should not be shown.

      Clicking on the 'restore' button will re-ping the server to see if you own the app or not. You could do that in cases where you have purchased the app, but it does not indicate it.  Any other times it will appear to do nothing because it verified the information was already correct.  Some apps will show this option and others won't.  It used to be a requirement from the stores to show this, but now it's mostly an option.  I am chosing to include the 'restore' button just in case, but really it is not needed anymore.  The information gets pinged regardless.


     The minimum API to run the game is now Android 10.

      I will get the other non-android versions of the game to the other stores soon.



      Most of games listed here are multi-platform such as on Windows, Linux, Macintosh and Android.


     Low-Joe:  Reverse Blackjack has a US Patent with other patent(s) pending.  We welcome any serious distribution inquirery from any gaming company or casino.  This is a real casino card game with house edge professionally calculated by gambling author Tony Guerrera ("Killer Poker by the Numbers" and "Tournament Killer Poker by the Numbers").  Low-Joe is meant to be installed in casinos as a table game.




     All software and website info's text, images and videos are all copyrighted by SlifkerGames, LLC.


     "Maxtheria", "Low-Joe", "Poker Dealer's Toolkit", "Bo Blasto", "Space Bombardiers", "Study Whatty", "Poker Drills", "Ja-Ja-Jiggy", "Slifker", "SlifkerGames", "All Games! All The Time!" and the SlifkerGames Tic-Tac-Toe Logo are all trademarks of SlifkerGames, LLC.

Alphabet Google Android:
 - Android 10+ (Quince Tart) (API 29+).
 - ARM or ARM64.
 - OpenGL ES2.0+, OpenGL ES3.0+, Vulkan.
 - 1GB+ RAM.

Alphabet Chrome OS:
 - Most Chromebook models starting from late 2016 should have the Google Play Store pre-installed to be able to download and run Android or Chrome apps.
 - There are some Chromebook models that will run Linux apps natively as well.

Apple iOS (iPhone/iPad):
 - Apple iOS 12.0+.
 - Metal graphics.

Apple Macintosh:
 - macOS 10.13+ (High Sierra)
 - Apple Silicon, x64 with SSE2.
 - Metal capable Intel & AMD GPUs.

 - Ubuntu 20.04+, Ubunti 18.04, CentOS 7 or Steam OS.
 - x64 with SSE instruction set.
 - OpenGL 3.2+, Vulkan capable.

Microsoft Windows (EXE):
- Window 7 (SP1+) +.
- x86, x64 with SSE2 instruction set.
- DX10, DX11 or DX12.
- This will work on Windows operating systems after Windows 7 (Windows 10 & 11).

Microsoft Windows 10/11 (UWP):
- Windows 10 or Windows 11.
 - x86, x64 with SSE2 or ARM, ARM64.
 - DX10, DX11 or DX12 GPUs.
 - This version will not work on Windows operating systems before Windows 10 (See .exe).

Windows 10/11 (Linux):
- Newer build versions of Windows 10 can run Linux apps but may require addtional setup first (WSL).
 - Windows 11 can run Linux apps (WSL) and Android apps but may require additional setup first (App Store).
 - "Windows Subsystem for Linux" (WSL) is available on the Windows Store.



(c) This page and the entire site including all text, graphics, videos are copyrighted by SlifkerGames, LLC