ACORN
ACORN is the Additive Congruential Random Number generator [1] introduced by Roy Wikramaratna in 1989.
Advantages of ACORN (from http://ACORN.wikramaratna.org/critique.html):
extremely light-weight code (a few lines) with reproducible results in any high-level language and on any platform; computational and statistical performance comparable to the best currently available methods theoretical convergence is mathematically proven all current empirical test suites for PRNGs are passed (i.e TestU01 current version, in 2019); this is better than the widely-used Mersenne Twister which consistently fails on two of the tests can be easily extended to give sequences with longer period length, and improved statistical performance over higher dimensions and with higher precision.
ACORN is not to be confused with ACG (Additive Congruential Generator), a term which appears to have been introduced to describe a variant of the LCG (Linear Congruential Generator in Knuth TAOCP); ACORN is a completely different algorithm with completely different properties.
Web site
The web site ACORN.wikramaratna.org describes ACORN in detail and provides complete references.