I've been investigating platforms such as catapult.gg and indieboost.com and wondering if they are worth it. Source: over 2 years ago

By a company called Indie Boost. It's how they get all their sponsorships. You can read how it works on their website. Source: almost 3 years ago

Unfortunately, your game will not get any attention if you do not advertise/market it aggressively. Services such as IndieBoost, can help with promotion. You could also consider integrating an Affiliate Marketing campaign directly within the game itself to promote the game. Source: almost 3 years ago

Asking if you should buy a game now or wait for a sale isn't allowed, asking when a game will go on sale is not allowed, asking how big of a discount a game might get is not allowed. Use SteamDB to look at sale histories on games. Source: 7 months ago

Here's how to cure you from your buying habit, checkout https://steamdb.info/, check the price history of the game you're thinking of getting. Most likely it's on sale once every odd month, and discount percentages are only ever increasing over time. So really you can just buy it when you think you have time to play it soon. Source: 7 months ago

Correct, it's trending on https://steamdb.info/ if you look at the panel, some games will show zero players. But OP is wrong, other games are trending too. Source: 7 months ago

Asking if you should buy a game now or wait for a sale isn't allowed & asking when a game will go on sale is not allowed. Use SteamDB to look at sale histories on games. Source: 7 months ago

You can use the Steam console to download older versions as described here. You can get the depot and manifest IDs from SteamDB. Source: 7 months ago