World of NFTs is a vast sea which takes time to explore. New projects pop out everyday, and it's hard to find the time to do all the necessary researches to evaluate the potential and the solidity of every project.
Marketing leads the way, and usually the projects with the best influencers and the most juicy collaboration rule the wall. The timeline is flooded with the giveaways form a little bunch of projects, while many other valuable start ups remain shadowed in the background.
Here is a list of some NFT and P2E projects which I think are deeply undervalued. This list is fruit of my personal researches and it's not paid promotion.
Guild Saga

Guild Saga is a P2E project on the Solana blockchain. The concept of the game is a clone of the 16 bit era tactical strategy/RPG games like Final Fantasy Tactis. It is packed with an awesome artwork, a solid gameplay and an inspired lore and world concept.
NFTs sit at a floor of 1.30 SOL at the time of writing, which is really low for a project with this value. Team is constantly building, Discord is vibrant, and soon they will release a World modality which will allow staking of the NFTs.
The game is going to be massive, and a playable demo will soon be released.
Flappyz

Flappyz is a porting on the Solana blockchain of the famous viral game of the first decade of the millenium. Flappyz is first of all a vibrant community, full of talnted and passionate people. The project offers NFT staking rewarded with the proprietary coin $FLPZ, and tournaments rewarded with coins, Solana and NFTs.
Flappyz will introduce in the future other modality of play ispired to classic retrogaming cults.
Pet Solciety

Another project with an incredible mainstream potential, Pet Solciety is the porting on Solana blockchain of the classic game of the Facebook era Pet Society.
Pet Solciety replies the gameplay fo the original, offering all the funny tasks and features that made the Facebook version a killer app.
Nagato

Now we change blockchain, and move on the Velas chain. Velas is a fork of Solana, which offers also a fast way to port DAPPs written in Solildity.On the Velas blockchain there is a blooming NFT scene, with vibrant projects and new marketplaces.
Nagato is an Azuki style NFT. It's not a derivative because it manages to distinguish from the Etehreum blue chip thanks to the skills of the graphic designer, but you can recognize the ispiration with no doubt.
Nagato NFTs are very clean and distinct. Thanks to the current drop in VLX value, their price si ridicosuly low.
Hotel De Mentia

Back on the Solana blockchain, we find a disruptive concept in the field of P2E. Hotel De Mentia is focused on psichology and dark aspects of human mind. Its story evolves through the exploration of a hotel which becomes a symbol for an inner voyage into our subconscious. The game is so innovative that it also contemplates the oprtion of having a chat room with a real human psichologist.
It also offers utility, by staking rewarded with Solana, and in game NFTs objects that could be traded.
Tha author is invested in the ssets quoted.
Not financial advising.
Do your own reserach or consult a professional before investing.