Su-33 is like Mig-29K. Both are carrier-based fighters and both are derived from land-based fighters with obviously various modifications.
Sukhoi Su-33 - Wikipedia, the free encyclopedia
"The Sukhoi Su-33 (NATO reporting name 'Flanker-D') is carrier-based multi-role fighter aircraft produced by Russian firm Sukhoi beginning in 1982. It is a derivative of the Su-27 'Flanker' and was initially known as the Su-27K. The main difference from the Su-27 is that the Su-33 can operate from aircraft carriers. Unlike the Su-27, the Su-33 is capable of aerial refueling".
(What I like about Wikipedia is its perhaps best for quick info, in 1 minute)
Su-33 is mostly compared to F-14, meaning that its a carrier-capable fighter.
See another link,
Sukhoi Su-33