Right now, the ones that are similar and I know of them are:
Haskell
Helm - FRP-style events, stateless purely functional API, backed by Cairo and Pango, with window/context creation via SDL
free-game - monadic but stateless rendering API, backed by OpenGL (with GLRaw used), context creation via GLFW. Less framework-ish. Doesn't use shaders.
Non-haskell
Love - written in Lua, with stateful rendering API (mostly for reference as first inspiration)
Right now, the ones that are similar and I know of them are:
Haskell
Non-haskell