Best open source Blackjack simulator?

I am planning to run various pieces of Blackjack probability analysis using Monte Carlo simulation. Over the last week I have been screening the web for open source Blackjack simulators so I don't have to start coding from scratch.

Of course I have come across ET Fan's Blackjack PowerSim software. While the feature set and the execution speed look very powerful, it has been written at least 10 years ago in the now somewhat outdated XBasic programming language. I could use Blackjack PowerSim as a starting point for my work, but was wondering if there are any other open source Blackjack simulators which have been written in more common programming languages such as C++, Java or Python? Again, the key thing for me is that the source code should be available so I can customize it, so closed source simulators like CVCX would not be relevant here.

Does this help?  The Wizard's stuff is usually good.  https://wizardofodds.com/play/blackjack-v2/

 https://github.com/Neurobaby/MGPs-BJ-CA

Old free code package.  Comps of Norm CVCX

I tried this blackjack calculator and found it interesting. How does the calculator find the integer HiLo true count number from its decimal number? By truncating or rounding? It seems like that the decimals are rounded. 

Also, this calculator shows that player should hit a multiple card 16 vs. T, is this correct? See picture below. 

The picture shows a recommendation for hitting 16 vs T, which correct basic strategy.

However, as a general rule, standing on multicard 16 vs T will yield a tiny improvement over basic strategy. The reason is that the holding is likely to contain more low cards than high ones and the index to stand is zero. That is, it is an extremely weak form of card counting for this hand.

I found this Wizard calculator powerful especially in this respect, the "analyze" gives the odds/decision for any situation according to a perfect combinatorial analysis. Earlier, James989 asked for the house edge from playing computer-perfect strategy at every decision point of an 8-deck shoe. I tried this effort before knowing the existence of this calculator and found that occasionally there is a difference between the HiLo and computer-perfect strategies. This picture above shows one of them. If this calculator could display the deck composition on screen, it would greatly help me to continue this effort.

Also, I learned about the OPP card counting system from this calculator. It hasn’t been mentioned in these blackjack forums very much. Anybody is using it?

Finally, there is a typo in this calculator for the Hi-OPT 2 system.  It mistakingly tagged the Ten as -1 and Ace as -2.

I could help you take a look at my source code for my simulator https://www.blackjack-hack.com/blackjack-hack.php 
 

It’s in PHP and CSS. It’s not open source or necessarily structured for that. But I could possibly give you an idea of what would be needed to add features you may be looking for. May also be helpful to me to understand what may be of interest.

Phil

I just looked up these acronyms. HTML stands for Hyper Text Markup Language, CSS for Cascading Style Sheets, and PHP for PHP Hypertext Preprocessor. Above all, Phil’s blackjack-hack simulator is the one I have been using. It is scientific. 
 

Just an idea for Phil. Is this possible you combine the above Wizard's calculator into your blackjack-hack to simulate 5000 six-deck shoes to find out how much EV a computer may gain from playing perfect strategy at every decision point?

The CSS is a way of formatting the website and the php is a programming language. 
 

Computer perfect play remembering every card and making optimal decisions should be a lot better than the typical card counting systems. Somewhere I thought I read you could possibly get a 7% advantage with computer perfect play. Dunno.

Nonsense! Why all these simulations?

A penny wise and tens and tens of thousands of $$$ in foolishness not trusting the works of Revere,

Schlessenger, and Wong w/all these wasted energy hours instead of mastering the info from above and confidently getting their cash?

Not everyone has the confidence putting fears aside, as I and others have done, and mastering the above works.

It's not upposed to be easy. 

My decades of so called pep talks never seem to hit home w/some!

Amen.

What makes you think the previous works are not trusted? I do trust the previous and current works. 

Your computer programming skills far far

exceeds my knowlege. Perhaps my feedback on an additional 7% addition  for the time spent cannot add additional worth to a .99 BE in actual earning potential

Recently I have researched computer-perfect play myself. Here is my methodology. I compared the insurance gains from

the computer-perfect and the HiLo plays and then got a number. To estimate other gains, I just assumed the remaining gain is about 20 times of the insurance gain. I will keep my result as a top secret for now.

I have an old Casey 21 computer.  Some of its plays are unique at times.  They say win rates are 80% of sessions compared to counting at 60% session win rates. Don't use since shoes complex and now illegal.

My current program does not at all lend itself to doing computer perfect play. Was just repeating something I vaguely remember. 7% sounds too high, dunno.
 

I need to upgrade my skills to more current to make my program run faster for even the current functions.

Phil

Well, maybe not with 1d dealt to the bottom with all the good rules.

The only 1 deck dealt to the bottom I ever saw was at Vegas World (Bob Supak’s casino) in the late 80’s, early 90’s. It only paid even money on blackjack though.

Treasure Bay Casino in pre-Katrina Biloxi had a 6:5 SD game dealt to the bottom. Heads up it was a very lucrative game.

Dog Hand

A few weeks ago I sat down at a 6:5 game, and one of the dealers mistakenly paid 3:2 on blackjack, and luckily got a few blackjacks with him. Have had this happen 2 or 3 times over the last couple of years. The most recent one was a single deck, I don’t remember how many decks the other ones were. I don’t play 6:5 very often but maybe should try if there is a chance for 3:2 😀. 

Green Valley Ranch has hidden 6/5 in the past.