There are definitely a lot of possible alternatives to the Survive! Knife, so many that we don't even need to mention them all as it's easier to say what to avoid
I like my recent Carothers Performance Knives DEK1 but haven't had a chance to use these yet, as they just arrived (4th and 5th from the right). Their reputation precedes them, and if you can find some you can get them in many sizes to suit your needs. The handles fit my hands well, and their fit and finish is second to none. I'd bet 2-4 CPK knives could replace all the ones in my picture below - granted, three of the below knives I didn't buy, and the two on the left were supposed to be retired by the Les George in the middle, which was supposed to be retired by the pair of CPK DEK1. The Buck 119 was too pretty to use LOL, as is my Randal Made.
But my Ruike F118G in 14C28N has been great so far (left on picture). It's been tough with yard cleanup and strops back easily - I've only had to put to a stone once at the end of last year. I had bought a QSP Bison (2nd from left) in D2 steel as a backup but never used it. The Gerber Strongarm has a big following and with many fans, and is very tough - my brother gave me this one last Xmas (3rd from left).
The Gerber Harsey-Reeve (4th from left) was my younger brother's and it came to me when he died. He swore by it when overlanding but I didn't want to mess it up as it's sentimental to me and in good shape, but he also used the Ka-Bar (2nd from right) a lot more and I used that last summer along with the Ruike.
The Les George Magnate in Magnacut (5th from left) might be a good option, as would the Buck 119 in 3V (2nd from right) so I'm told, but I have not had a chance to use them yet. The Spyderco Mule in M398 (far right) hasn't been tested by me yet and is probably too light and small - I just threw it in because I was in the process of attaching scales today.
I don't have any beefy David Mary Knives yet, but have two heavy 5" Tantos in 8670 steel coming soon that I can play with before I turn them into gifts. They have a RC of just over 60, and should be pretty tough. He can custom build you one for under $200. He makes a lot of heavy duty survival knives, but most of mine are neckers or EDC knives.
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