How about 20 years?
Grimoire is finally being released. (The link here is to the Steam version.) Here, let me just quote the features text:
After more than 20 years of development, the greatest roleplaying game of them all is finally ready for release! Grimoire is an homage to the classic dungeon blobbers and is inspired by Wizardry, Might & Magic, Lands of Lore, Anvil of Dawn, DungeonMaster and the Eye of the Beholder games!
- 600 hours of play possible in a single game
- Lush Colorful 2D Hand Drawn Artwork
- Retro style MIDI music and 8 bit sound effects
- 244+ Maps in the game to explore!
- Turn-Based strategic combat
- Multiple Beginnings, Multiple Endings
- 144 context sensitive magic spells
- 14 races, 15 professions, 50 skills
- 64 intelligent NPCs with 8000+ Words in Vocabulary
- Full Sentence Communication with NPCs
- 240+ monsters each with special powers and defenses
- 1000+ items, Carry Containers, Global Party Inventory
- 30 conditions, from Confusion to Disease & Lycanthropy
- Automapping, Autowalking, Autohealing
- Global Map Atlas With Position Marker
- Quest Journal, Hint Prompting, Help Facility, Mini-Quests
- Complex LockPicking Interfaces for Doors & Chests
- Challenging Puzzles and Rich Interactive Dungeons
- Browsable Character Library for up to 100 characters
- Up to 12 Commented Postage Stamped Savegames
- Multi-themed GUI and customizable screen layouts
And if you buy it the week it comes out (Aug. 1), it's 10% off. About which, the developer has something else interesting to say:
I have decided it is just a nice thing to do for people who have been waiting years to play my game if I offered a 10% discount on the game during it's first week. After this ends, I want to assure anyone waiting for the game that Grimoire will never, ever sell at a discount at any time it is on the Steam store ever again. I won't permit it to be sold below it's retail value for any reason. I am too proud of my finished product to permit it to be turned into simply another commodity in a Steam sale. If Valve ever decides that sales of the product no longer justify it having a page then I will move it to another venue - but as the author I will never offer my game at a discount again anywhere. I'm not a corporation that turns out games like sausages and computes their price curves over rates of decay in market value. Grimoire is my unique and proprietary product and I only want to sell it to the most hardcore fans of the genre. I was never targeting the mass market or casual gamers. It is in the first paragraph of the original design document I wrote more than 20 years ago when I was putting a proposal together that described the entire game end-to-end in both story, design and implementation. It was an aristocrat's manifesto when it was written and the language was specifically that of an aristocrat declaring the game was not going to be designed to appeal to the masses. Only fans of the genre.
I don't know if I'll spring for this myself. But it seemed ambitious enough that RPG fans here might find it worth a look.