If you want to get warframe slots without platinum, there are a few ways to do so. Warframe slots can be earned by completing quests, defeating bosses, and earning rewards from machines and terminals. Completing daily quests is the best way to earn slots since they offer a good amount of rewards, such as credits, items, and even platinum. There are also a few boss fights that award slots, so it’s important to know which ones are available.
Finally, earning platinum from machines and terminals is another way to get warframe slots. Platinum can be exchanged for items that give players bonus slots, such as mods that boost stats. Overall, there are many ways to earn warframe slots without having to spend platinum.