Multi-tools and Starships
Both your Multi-tool and your Starship can be upgraded to have different ways of firing. The base Multi-tool blast is your Minelaser, which is primarily used for mining elements from the planets. While it can do a decent amount of damage to low-tier Sentinels and some animals, it isn’t the best thing on the market. You’ll want the Boltcaster technology which turns your Multi-tool into a bona fide weapon as well as the Plasma Launcher, which is essentially a grenade launcher. With certain modifications, you can fine-tune the weapon to your playstyle, making combat a bit easier in No Man’s Sky.
Your Starship works similarly, relying on technology you can install to alter how it fires. You start with a Photon Cannon which is more than capable of taking out smaller Starships, but you can add different types of blasts, including a powerful beam weapon.
You don’t want to stick to the starting gear for long, as threats become more powerful down the line. Sure, you can avoid them more often than not, but you should still always be prepared.