Old School Renaissance (OSR) (2000)

Nimble is a fast, tactical (and 5e compatible), TTRPG. Your game nights are too precious to waste with slow or fiddly rules! Slay the slog using the best elements from the greatest RPGs around. Nimble empowers players and GMs with more interesting choices, less waiting around, and have more fun playing epic stories Description Nimble RPG is designed to prioritize speed, tactical decision-making, and reduced administrative tracking for both players and Game Masters. The system condenses character sheets and streamlines the action economy to prevent long waiting periods between player turns. Its primary design philosophy centers on accelerating combat encounters without sacrificing strategic depth, utilizing highly lethal weapon mechanics and dynamic monster behaviors. The game is offered both as a complete standalone system and as a modular "rules hack" booklet that can be integrated directly into an ongoing Dungeons & Dragons 5th Edition campaign. System Overview & Key Features Fast Combat Don’t waste your time rolling to see if you can deal damage, just roll your damage dice! You deal that much damage. Attacks miss on a 1, but rolling the maximum is an EXPLODING Critical Hit! Exploding critical hits Roll the die again and add it to the total. There is no limit to how many times this damage can stack, except your luck! Instant Initiative Get RIGHT into combat with Improved Initiative rules that get players immediately into combat in a way that serves the story without breaking up the flow. Quick to prep Nimble is quick to prep and easy to run. You've got enough going on while GMing—Mechanics are all designed to be easy to manage and track at the table. You can be ready to run an adventure in as little as 5 minutes! And there's no need to for new players to read though endless pages of rules, teach new players as you play. Easy to balance Easy Encounter Creation. No matter the size of your party—whether you play in a cozy group with just 1 or 2 heroes, or a huge group of 8 or more—Encounters are easy and intuitive to build and balance for just the right level of challenge you like. Craft massive scale combat encounters, down to legendary solo encounters. Strategic Weapon System A subtly DEEP weapon system that rewards thoughtful play. No more, “I guess I’ll pick the bigger one...” Every weapon is balanced to have interesting strengths & weaknesses in combat. Additional links nimblerpg.com - Official website and rules repository

Ishanekon: World Shapers is the (probably) biggest free Indie TTRPG with over 2,500 character options. It has been mainly developed by Jan Luyken, aka Blaze Reason, with the aim of creating a game that can compete (if not surpass) the current biggest games on the market while remaining affordable for anyone. With its easily adaptable rules and wide range of options, from beginner-friendly to highly complex, it is designed to satisfy the needs of almost any story and play style. Description From epic fantasy and sci-fi to mundane humans facing everything from common threats to cosmic horror, Ishanekons: World Shapers’ modular design lets you easily adjust the rules to help you experience your stories. This game is designed with the idea that you bring the flavor, and the mechanics help you bring it to life. The 10 Archetypes with over 200 Sub-Archetypes, 1000+ Abilities, 600+ Talents, 300+ items and upgrades, and more allow you to build anything from a simple cat to a city-destroying kaiju. Role and complexity filters let you find what you need quickly while helping you avoid those features that might be too overwhelming for your liking.

Mothership is an action-packed mixture of sci-fi and horror themes, combined into a streamlined gaming system about surviving in the cold, deadly vacuum of space while everything around you is trying to kill you. All at the same time as you are fighting (or fleeing from) alien creatures who aren't there to make any new friends. Chaos. It was published by Tuesday Knight Games and released in 2024.  It is a survival horror system designed for one-shots and campaigns, inspired by classics like Alien, Event Horizon, and Pandorum. Famous for its streamlined ruleset and award-winning graphic design that prioritizes ease of use at the table. The game, at the same time simplistic and streamlined in design, will challenge the characters at all times, allowing the game to focus on the storytelling and less on having complicated rules. The system it is inspired by is Old School Renaissance Description In Mothership, players take on the roles of blue collar workers in space, such as Teamsters, Scientists, Androids, and Marines. You are not powerful or heroic soldiers; you are vulnerable humans trapped in high pressure environments with alien monsters, failing life support systems and the crushing weight of corporate greed. The game is designed to be fast-paced and unforgiving, where the primary goal is not to win, but often enough - to survive. System Overview & Key Features d100 Percentile Resolution In the core of the game system is the d100 percentile system. Roll two d10 dice and get a number from 00 to 99. Success means rolling a lower result than your character's appropriate stat or skill for the task. Rolling a double, like 11, 22, or 33, is considered a critical success if it succeeds or a critical failure if it fails. Rolling low is the target for survival. Stress and Panic As characters encounter horrors or suffer trauma, they accumulate Stress. When a character experiences a terrifying event or rolls a critical failure they must make a Panic Check. The more Stress they have, the more likely they are to suffer a catastrophic mental breakdown, ranging from a heart attack to a violent psychotic break. The Save System Instead of a long list of saving throws, characters have four primary Saves: Sanity, Fear, Body, and Armor. These are used to resist different types of potential trauma. Fear saves are rolled to keep your cool under pressure, while Sanity saves represent your ability to process alien truths without losing your mind (think lovecraftian horrors). Class Based Skills The game features four distinct classes. Marines are obviously combat focused, Teamsters are pilots and laborers, Scientists are experts in medicine and biology, and Androids are cold calculating, yet efficient machines. Each class has it's unique starting stats and specific triggers for when they gain or lose Stress, which is based on their personality. Lethal Combat and Healing Combat is extremely dangerous and often a last resort. Weapons are likely to deal potentially excessive damage when compared to a character's total healthpool. Healing will be slow and require resources that are hard to come by in the middle of the constant crisis, making every injury feel like a significant threat to the character's chances of making it out alive. Deadly Ship-to-Ship Combat The game includes a streamlined system for starship encounters. Ships have their own stats and modules that are likely to be damaged during a fight. Players must work together to manage various roles and stations, like Engineering or Piloting, to keep the ship's hull from breaching while under fire or fleeing from cosmic anomalies. Additional links tuesdayknightgames.com - Official Tuesday Knight Games website mothershiprpg.com - Official Mothership portal and digital resources

SCVMRACK is a free, unofficial character toolkit for MÖRK BORG. It lets players generate characters in seconds, manage their character sheets during play, track equipment, weapons, armor, abilities, pets, silver, HP, Omens and more. Characters can be edited and updated directly in the browser, with support for English and Polish. SCVMRACK also includes searchable game content, character storage, Guilds for organizing groups, and tools that let GMs quickly view their players’ characters without taking control of their sheets. It is built as a practical companion for play at the table or online, with no account required for basic character creation. SCVMRACK is completely free and is developed as part of RPGTools.co.

Small Embers is a Dungeons & Dragons (D&D) actual play podcast blending cinematic storytelling, immersive roleplaying, and epic fantasy adventure. Follow a group of unlikely heroes as they uncover ancient secrets, challenge powerful empires, and shape the fate of the richly detailed world of Elestia.

The Cosmere Roleplaying Game is an officially licensed tabletop RPG based on Brandon Sanderson's Cosmere universe - the shared setting behind The Stormlight Archive, Mistborn, and a dozen other series - designed by Andrew Fischer and published by Brotherwise Games in partnership with Sanderson's own Dragonsteel Entertainment. Announced in late 2023, its August 2024 Kickstarter raised over $15 million, making it not just the most-funded tabletop RPG in the platform's history but the most-funded tabletop game of any kind. The first campaign setting, covering Roshar from The Stormlight Archive, released digitally in mid-2025 and in print that October; a second setting covering Scadrial from Mistborn is planned for 2026, with more of the Cosmere expected to follow as Sanderson's novels do.