Suggestions for Simplekv

The following packages have something in common with the package Simplekv. The packages are ordered in decreasing similarity.

Package luakeys: A Lua module for parsing key-value options
Package lparse: Parse macro arguments with Lua using xparse-like specification
Package expkv-bundle: An expandable key=val implementation and friends
Package kvdefinekeys: Define keys for use in the kvsetkeys package
Package kvoptions: Key value format for package options
Package kvsetkeys: Key value parser with default handler support
Package xkeyval: Extension of the keyval package
Package keycommand: Simple creation of commands with key-value arguments
Package keyval: Process key=value schemes
Package expkv-def: A key-defining frontend for expkv
Package expkv-opt: Parse class and package options with expkv
Package expkv: An expandable key=val implementation
Package yax: Yet Another Key System
Package l3keys2e: LaTeX2ε option processing using LaTeX3 keys
Package pgfopts: LaTeX package options with pgfkeys
Package scrbase: Provide basic features for KOMA-Script
Package pgfkeys: Key value control for PGF
Package expkv-cs: Define expandable key=val macros using expkv
Package luakeyval: A minimal key/value system for LuaTeX based on token.scan_key_cs
Package keytheorems: An l3keys interface to amsthm
Package ifvtex: Detects use of VTeX and its facilities
Package ifluatex: Provides the \ifluatex switch
Package nth: Generate English ordinal numbers
Package ifpdf: Provides the \ifpdf conditional
Package ifetex: Provides \ifetex switch
Package ctablestack: Catcode table stable support
Package expex: Linguistic examples and glosses, with reference capabilities
Package ifxetex: Am I running under XeTeX?
Package luatexbase: Basic resource management for LuaTeX code
Package multido: A loop facility for Generic TeX
Package multiexpand: Variations on the primitive command \expandafter